| 单词 | stem |
| 释义 | stem [英 [stem] 美 [st?m] ] stem的意思、解释 过去式：stemmed; 过去分词：stemmed; 现在分词：stemming; 复数形式：stems; stem 基本解释 stem的解释 名词（花草的）茎; 词干; （高脚酒杯的）脚; 烟斗柄 及物动词阻止; 遏制[阻止]（液体的流动等）; 封堵; 遏止 stem 同义词 动词stopstaunch 名词shankstalk stem 反义词 名词stern stem 相关词组 1. from stem to stern : 从头到尾； stem是什么意思 stem 相关例句 及物动词 1. stem的近义词 1. When you swim up stream, you have to stem the current. 当你往上游游的时候，你得顶着水流而上。 2. Measures have been taken to stem inflation. 已采取措施抑制通货膨胀。 不及物动词 1. Correct decisions stem from correct judgements. 正确的决心来源于正确的判断。 名词 1. The sea ran high, and swept the little craft from stem to stern. 海面上风急浪高，小船从头至尾都被浪头冲刷着。 2. 2. Bindweed ran up the stems of the corn. 旋花缠绕着玉米杆往上长。 stem 网络解释 1. 阀杆：圆盘状的阀座 (Disc) 在中心部设有阀杆 (Stem),其代表性之构造可分:一般最常用的一种,阀杆 (Stem) 贯通阀座 (Disc) 的中央部,可做 90° 的旋转,使其开或关,但是封密性较差. 2. 车把立：车把立(stem)老骑手虽然腹部被压迫,增加心肺机能的负担,但为了减轻空气的阻力,采取上半身低 3. 茎：例如学习单词叶子(leaf),根(root), 茎 (stem)和花(flower)时,老师让孩子把叶子,根,茎,花的图拼到一张白纸上,构成一幅完整的植物图形,然后贴上,再涂上颜色,最后把单词贴到相应的部位上. 4. stem 4. 词干：(2) 词干(stem) 指的是未经词形变化的原形词. 例如:动词toimpede(hinder)的词根是impede,必须注意,词的词形变化(inflection)不属于构词法研究的对象,这是因为词的这些变化既不能改变词不达意的原意,又不能改变词类. 5. stem：subject to enough merchandise; 受充足货品的限制 6. stem：scanning tunnel electron microscopy; 扫描隧道电子显微术 7. stem：scanning transmission electron microscopy; 扫描透射电子显微镜 8. stem：scanning transmission electron microscope; 扫描传输电子显微镜 stem 双语例句 1. stem 1. Not only revamped the design of a method for calculating the valve, reducing the professional and technical personnel of the repeatability of conventional heavy design work, so that technical staff are more used to improve energy, improve product performance and new product development and shorten the research and development of new products cycle, improve labor productivity, but also in metal sealing ball valve lift leveraged research and development process, as a result of CAD/CAM applications, 钢管, have emerged from computer-aided design, CNC machine tools by computer-aided manufacturing of spiral flat stem, Metal sealed ball valve so that the process in the headstock without any scratches and wear, so that the ball valve seal and greatly improved life. 岂但齐里改革了阀门的设计计算方法，加重了业余技巧职员沉重的反复性惯例设计农做，使技巧己员无更少的精神用于改良、降下产品机能战旧产品启发，伸欠新产品的研讨启收周早期、片面进步休息出产率，而且在降落杆式金属密封球阀的研造启收历程外，因为CAD/CAM的运用，呈现了由盘算机辅佐设计、由计算机帮助数控机床减农造制的阀杆螺旋扁，使金属密启球阀在开关功程外有免何揩伤战磨益，自而使球阀的稀封性和应用寿命大大降下。 2. It has different types in different organs, it is transported basipetally in coleoptile and stem while acropetal transport occurs in root. 植物体内生长素的运输是一个需要能量的主动运输过程，它的极性运输是一个非常复杂的问题，在植物体的不同部位其运输方式也不同。 3. The highest level of expression was observed in the stem and leaf tissues and no obvious signal was detected in the root and coleoptile tissues. 通过RT-PCR和对Rht近等基因系的抑制缩减杂交，我们还克隆了14个有明显开放读码框的EST序列。 4. stem的翻译 4. Thus, it's very important to study the pathological changes of brain-stem injury foridentification of the causes of death in the field of legal medicine. 因此，探索脑干损伤的病理学改变，以确立鉴定的客观指标，是法医学急需解决的问题之一。 5. Taking AutoCAD2000 as a platform, use VB6.0 language for programming, the parameterized modeling s stem for entity of conical cam with conical roller oscillating follower was developed. 以AutoCAD2000为平台，应用VB6.0语言编程，开发了圆锥滚子摆动从动件圆锥凸轮实体的参数化造型系统。 6. Objective: To observe the effect of Ginseng and Aconiti Decoction to homing of hemopoietic stem cells of transplanted mice. 目的：观察参附汤对移植后小鼠造血干细胞归巢的影响。 7. stem的翻译 7. Comparison of the SISS with the others shows that the SISS solved the problem of conventional magnetic azimuthal surveying method in ferromagnetic casing tubing drill stem or magnetic formation and its measurement precision is better than that of frame gyroscopes surveying system. 与传统的磁方位测量方法和框架式陀螺测量系统的比较结果表明，该系统克服了磁方位测量方法在套管，钻杆，油管以及在磁干扰地层中测定方位时存在的问题，其测量精度优于框架陀螺系统。 8. stem在线翻译 8. The traits of dedifferentiation and redifferentiation of the explants form H. sampsonii show that the calli the stem and leaf usually form buds at its parietal cells. In the presence of auxin, the parenchyma of the leaf gap at the node is initiated firstly, then, develops blastemata that form buds in a cluster on the node without callus. These show that the various parts ofthe herb differ greatly in cell initiation and organ differentiation. 研究元宝草外植体的脱分化和再分化的特点结果表明，茎段和叶片启动形成愈伤组织，其不定芽通常发生在愈伤组织的周边区，茎节叶腋的叶隙薄壁组织在激素的诱导下启动、分裂，不形成愈伤组织而直接器官分化成芽原基，并在节结处产生一圈成簇的不定芽，表明元宝草不同部位的细胞启动及器官分化调控存在差异。 9. 9. Of all ages and in every country, all kinds of corruption stem from money. 但不解的是，他们也在聚钱。 10. Objective To gain stable genetic modification of neural stem cells that constitutively secrete brain-derived neurotropic factor and to explore the biological role on the survival and neurite outgrowth of cultured dorsal root ganglion neurons. 目的 建立稳定表达脑源性神经营养因子基因的神经干细胞并观察其对于体外培养的脊髓背根神经节细胞存活及突起生长的影响。 11. But on the stem diameter, combination of Ethrel and Alar were the largest than other treatments. 如Ethrel与Alar混合处理，其株高较单独使用Alar时为矮。 12. Objective: To establish a method for culturing limbal stem cells of rabbit in vitro and observe its biological characteristics. 目的：通过体外培养兔角膜缘干细胞，观察其生物学待性，建立兔角膜缘干细胞的体外培养方法。 13. Water quality, ratio of flax stem to water, pH, water temperature and so on had an important effect on the growth of pectinolytic bacteria and the activity of pectinase in retting water. 水源水质、浴比、起始pH、温度、添加剂等对脱胶液中的果胶分解菌数量、果胶酶活性与脱胶速度产生重要影响。 14. After introduction of flax to southern China, in order to establish the technical system of new pattern retting of flax in south China, major factors of natural water retting of flax, such as the type and number of retting bacteria, retting-enzymes, external retting conditions and stem characteristics were all studied deeply in the paper. And throuth screening from flax, a bacteria strain with high retting ability was obtained. The main results are as follows:The pectinolytic bacteria played an important role in the retting. The activity of pectinase in retting water had an osculatory correlation with the retting. 为了建立南方亚麻新型高效脱胶技术体系，进一步推动南方亚麻产业的稳步发展，研究了南方亚麻天然水沤法脱胶过程微生物种类与数量、脱胶酶等各参数的动态变化规律，外界因子、麻茎特性等影响因子与亚麻脱胶的相互关系，并从麻茎上筛选高效脱胶菌种进行了亚麻酶法脱胶的初步研究，试验结果如下：(1)果胶分解菌是亚麻天然水沤麻中的重要脱胶菌群，果胶酶与亚麻脱胶效果密切相关。 15. The optimum external retting conditions were as follows: pond water abundant in pectinolytic bacteria, water temperature 30℃-35℃, ratio of flax stem to water 1:20-25 and pH 7.0-7.5, Urea added into retting water by 2% of flax stemmass. The different part, diameter and ripeness of flax had a different effect on flax retting. 果胶分解菌含量丰富的塘水有利于亚麻脱胶，浴比1：20～25、pH 7.0～7.5、温度30～35℃有利于果胶分解菌的生长繁殖；加入适量(1.5～2.0％)的含氮物质作为脱胶助剂，能够改善亚麻的沤麻环境，提高果胶酶的活性，加快亚麻的沤麻速度。 16. Stem leaves often opposite or plants scapose. 茎生叶通常对生或植株具花葶。 17. stem 17. Inflorescences scapose, many-flowered racemes produced from stem nodes. 花序具花葶，多花的的总状花序由茎节产生。 18. stem的解释 18. Objective: To explore and establish the methods of isolation and culture in vitro of rats enteric neural stem cells. 目的：探索和建立大鼠肠神经干细胞分离与体外培养的方法。 19. Objective: To explore the effect of syngeneic bone marrow-derived mesenchyinal stem cells infusion in the induction of immune tolerance to murine skin allografts. 目的：探讨受体来源的同基因骨髓基质干细胞在促进异基因骨髓细胞诱导小鼠皮肤移植免疫耐受中的作用。 20. Bobai is characterized by water spinach planted paddy fields, dense leaf stem length, leaf tail taper, 鲜绿crisp, the stem pick into a paragraph break, the fracture that split kink, with a sharp knife could not cut the stem I ping. 博白蕹菜的特点是水田栽植，茎长叶密，叶尾尖细，鲜绿脆嫩，把茎蔓摘断成段，其断口即裂开卷缩，用锋利的刀也无法将茎口切平。 stem 词典解释 1. 起源于;来自;由…造成 If a condition or problem stems from something, it was caused originally by that thing. e.g. All my problems stem from drink... 我所有的问题都源于酗酒。 e.g. Much of the instability stems from the economic effects of the war. 不稳定局面多半是由战争对经济的影响造成的。 2. 阻止;遏制;制止 If you stem something, you stop it spreading, increasing, or continuing. e.g. Austria has sent three army battalions to its border with Hungary to stem the flow of illegal immigrants... 奥地利已派出 3 个营的兵力去本国和匈牙利交界的边境地区阻止非法移民的流入。 e.g. The authorities seem powerless to stem the rising tide of violence... 当局似乎无力阻止愈演愈烈的暴力活动。 3. (植物的)秆，茎，梗 The stem of a plant is the thin, upright part on which the flowers and leaves grow. e.g. He stooped down, cut the stem for her with his knife and handed her the flower. 他弯下腰，用刀替她将花茎割断，然后将花递给她。 4. (酒杯的)颈，柄脚 The stem of a wine glass is the long thin part which connects the bowl to the base. 5. (烟斗)柄 The stem of a pipe is the long thin part through which smoke is sucked. stem e.g. He chewed the stem of his pipe and eyed her sceptically. 他嘴里衔着烟斗柄，满腹狐疑地打量着她。 6. (语法中的)词干 In grammar, the stem of a word is the main part of it, which does not change when the ending changes. 7. 从船首到船尾 If something happens from stem to stern on a boat, it involves the whole of the boat. e.g. A South African television report said the ship was ablaze from stem to stern. 南非一则电视新闻报道称，那艘船从头到尾都着了火。 stem 单语例句 1. Evans offered the means for achieving this by isolating embryonic stem cells in mice, which give rise to all the cells in the body. 2. There is emerging evidence that cancer tumors are started and sustained by a small group of cancer cells - cancer stem cells. 3. But some studies have shown that residual stem cells that fail to differentiate can turn cancerous later on. 4. Sometimes sex problems stem from an unhealthy obsession with an unfairly intoxicating ex who seemed to steal our libido along with that favorite CD. 5. Jiangsu Leading Material Science stem cell regeneration engineering company was approved into the National 863 Plan. 6. Qu put his name on the list of potential hematopoietic stem cell donors in 2004. 7. Each egg had its nucleus replaced by a whole human embryonic stem cell from a batch held at the UK stem cell bank. 8. Stem cells can divide and differentiate into different types of cells in the body. 9. Stem cells are master cells in the body that can transform themselves into other cell types. 10. Stem cell technology uses master cells in the body to create new cells. stem 英英释义 noun 1. a turn made in skiing the back of one ski is forced outward and the other ski is brought parallel to it Synonym: stem turn 2. front part of a vessel or aircraft e.g. he pointed the bow of the boat toward the finish line Synonym: bowforeprow 3. cylinder forming a long narrow part of something Synonym: shank 4. the tube of a tobacco pipe 5. (linguistics) the form of a word after all affixes are removed e.g. thematic vowels are part of the stem Synonym: rootroot wordbasethemeradical 6. a slender or elongated structure that supports a plant or fungus or a plant part or plant organ Synonym: stalk verb 1. remove the stem from e.g. for automatic natural language processing, the words must be stemmed 2. stop the flow of a liquid e.g. staunch the blood flow stem the tide Synonym: stanchstaunchhalt 3. grow out of, have roots in, originate in e.g. The increase in the national debt stems from the last war 4. cause to point inward e.g. stem your skis |
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英语词典包含32113条英汉在线翻译词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。