| 单词 | periodic |
| 释义 | periodic [英 [?p??ri??d?k] 美 [?p?ri?ɑ:d?k] ] periodic的意思、解释 periodic 基本解释 形容词周期的; 定期的; 回归的; 间歇的，时而发生的 periodic 网络解释 1. 1. 周期性：重力场波来源的型式可分为三大类:脉冲性(impulsive)、周期性(periodic)和随机性(stochastic,见表一). 脉冲性来源一次产生一个波,可持续几个毫秒,相当於声波穿过崩溃中的星球内核所需的时间. 星体崩溃时物质高速运动是脉冲性重力场波的一大来源, 2. 周期性的：这些彗星中有 184 个是周期性的(periodic)彗星(轨道周期少於 200 年而剩下来的其中一些无疑地也是周期性彗星,但我们并没有足够精确的资料来确定出它们的运行轨道. 3. 周期：根据对变量的不同要求,数据存储的触发方式有3种:根据周期(Periodic)、根据变化(On Change) 和根据需要(On demand). 其中根据周期方式中又有多种时间类型可供选择. 存储文件的管理也很方便,操作人员可选择文件生成的间隔时间并自动删除过期文件. periodic 双语例句 1. periodic的解释 1. A periodic religious festival commemorating an event or honoring a god or saint. 祝典为纪念某一事件，敬神或圣人的定期的宗教节日 2. In this paper employing periodic function of complex function, a power function and a logarithmic function were constructed to obtain Principle Quantum Number, Angular Quantum Number, Magnetic Quantum Number, Spin Quantum Number and the relations between them. 利用复变函数中周期函数结构，构造了一个幂函数和一个对数函数。给出了电子的主量子数、角量子数、磁量子数和自旋量子数，以及它们之间的关系。 3. The four paleoevents are characterized by 3 - 4ka quasi-periodic recurrence interval. 这4次古地震事件具有约3—5ka的准周期重复特征。 4. periodic的近义词 4. Sc, there are two kinds of isotopes shaped body, the structure is trigonal system and the hexagonal Department, is found in the periodic table predicted decades before the first one confirmed the correctness of the periodic table of elements, which is very famous. 周期表中ⅢB族有银白色金属光泽的固体金属过渡元素，又属稀土元素，原子序数Z＝21，原子量4959，化学符F号Sc，有两种同位素异形体，结构正方晶系和六角晶系，是周期表预言十年后才发现的第一个证实周期表正确性的元素，因而很有名气。 5. Based on both diffusion mechanism of the atoms in films and selenization of metal layers process, a novel periodic sequentially-evaporated and vacuum-selenized annealing process are developed to prepare the films, such as 〓, 〓, Cu 〓Se〓 and Cu 〓Se〓 in this paper. The atomic percent of Cu and In and Ga and Se in those films can be precisely controlled using such process, resulting in qualified stoichiometric polycrystalline films. 基于蒸发硒化工艺和薄膜中元素扩散机理，本文建立了一种切实可行的新颖的生长CuInSe〓基薄膜及其相关缺陷化合物〓、Cu〓Se〓和Cu〓Se〓等的周期顺序蒸发工艺，以利于真空硒化时精确控制Cu、In、Ga和Se原子在薄膜体内的百分比含量，从而获得高质量特定化学比的多晶薄膜。 6. Of or relating to the component of lowest frequency of a periodic wave or quantity. 基波的：周期波或周期量的最低频率的分力的或与此有关的 7. Magazine is some kind of periodic or nonscheduled continuous publication. 中文摘要：期刊，是定期或不定期的连续出版物。 8. Maintain lab equipment in good conditions and schedule periodic calibration 保持实验室设备条件完好/更新以及定期校验 9. He recommends a system consisting of four steps: evaluation, communication, conviction, and periodic reevaluation. 他建议系统，包括四个步骤：评估，通讯，信念，并定期重新评估。 10. periodic的近义词 10. After the PRC established, the grain circulation systems have changed from the free buying and selling to the state monopoly for purchase and marketing, and from contracting in buying and selling to the grain marketability reform. Similarly, it`s also following this periodic change path. 我国粮食流通制度从自由购销到统购统销、从议购议销到粮食的市场化改革，同样遵循着这一周期性的变迁轨迹。 11. Objective To study the clinical features of periodic paralysis. 目的 探讨周期性麻痹的临床特点。 12. periodic的意思 12. Clinical data showed that periodic alterations of estrogen and progestin in some women patients with catamenial epilepsy might affect seizure susceptibility. 临床资料显示，某些女性癫痫患者体内雌、孕激素的周期性变化可能影响癫痫发作的易感性。 13. Alternatively, vendors can issue licenses that repeatedly expire to enforce a periodic lease payment. 另外，供应商可以发行许可证一再届满，执行定期契约付款。 14. Microgram for microgram, beryllium is one of the most toxic elements on the periodic table. 一微克，又是一微克，铍是周期表上最有毒的元素之一。 15. For a fixed-priority preemptive sche d uled soft real-time system, we present probabilistic time demand analysis techn i que by which a lower bound on the probability that a job in a periodic task meet s its deadline is estimated. We have also performed a simulation study of an ex ample system and check the tightness of the lower bound. 提出了概率时间需求分析法，用于估计可剥夺静态优先级调度策略下周期性任务的作业满足时限约束的概率的下界，并通过一个具体的实例考察了下界的紧性。 16. At the same time, the deficiencies of mean firing rate in characterizing the firing activity of excitable cells is pointed out, and a novel describing method is presented using the information of periodic orbits. 同时指出以往使用平均发放率来刻划可兴奋性细胞放电活动存在的缺陷，提出了一种新的利用周期轨道信息的刻划方法。 17. The main aspect of the paper is influences of the nature factors, which includes seven aspect of duststorm research. For example, sand distributions and path of duststorm in East-Asia, duststorm periodic variation, the influences of climatic change, a variety of weather system of making duststorm, mechanism of dust emission, utilizing of satellite image and wind erosion model. The present main research results are introduced in detail. 该文重点论述自然因素对沙尘暴的影响，拟从七个方面对沙尘暴的形成及研究现状进行评述，即沙源分布与移动路径、时间变化、气候变化的影响、产生沙尘暴的天气系统、沙尘的物理化学性质及起沙机制、大气辐射特性及卫星遥感监测、沙尘暴的数值模拟。 18. Periodic time is about 0.3 ns and Strouhal number is about 0.2. Length of time-average vortices is 1.4 times larger than diameter of the cylinder. 结果显示，一个涡脱落周期大约为0.3 ns，斯特劳哈尔数St约为0.2；时均对称涡的长度是圆柱直径的1.4倍，涡径与圆柱直径相当。 19. 19. Based on the heat balance equation of snow surface and the periodic variations of temperature field and heat flow, the Fourier model of snow surface is established. 根据雪面温度域以及热流的周期性特点，在雪地表面热平衡方程的基础上，建立了雪面辐射温度的傅里叶模型。 20. 20. The buyer makes periodic payments to the seller in exchange for the right to sell the bond issued by the reference entity to the seller for its face value if a default, known as a credit event, occurs. A credit event is typically defined as bankruptcy, failure to pay, or restructuring. The rate of payments made per year is known as the CDS spread and denoted in basis points. 唯一的区别是，传统保险保人寿或者保财产，一旦有财产损失发生或者生病过世等保险公司就要赔钱，CDS也是一样，参与CDS的两方，一个叫protection buyer，一个叫protection seller，平时protection buyer就付给seller保费（就是这个CDS spread），一旦违约事件发生seller就要对违约进行赔付，所以spread越大表示违约的概率越高，CDS的创造主要是为了将利率风险和违约风险分开单独创设的一种产品。 periodic 词典解释 1. 间发性的；定期的；周期的 Periodic events or situations happen occasionally, at fairly regular intervals. e.g. Periodic checks are taken to ensure that high standards are maintained. 定期检查以确保维持高水准。 e.g. ...periodic bouts of illness. 周期性发病 periodic 单语例句 1. The campus network will be under comprehensive supervision and periodic inspections of educational administrations, the ministry said. 2. Russian and American scientists say they have created two new " superheavy " elements that will reside at the extreme end of chemistry's periodic table of elements. 3. Liu started this periodic work early this year and she is one of the three cleaners in her village. 4. Despite the hereditary and communicable factor and some cases of depression, periodic suicides in rural areas are largely related to complicated social backgrounds. 5. It would mean that even if the culprit is not found, the victim could still access the common compensation fund on a periodic basis. 6. Successful as Apple and Amazon have been with their devices, there are periodic signs of disquiet. 7. Egypt has long struggled with Islamic militants interested in overthrowing the secular government, but has contained the threat with periodic crackdowns and by allowing Islamists some political activity. 8. But it seems some of the officials forget this objective and treat food safety supervision as a periodic task rather than a permanent mission. 9. The periodic releases are seen as both a symbolic gesture to highlight increased security and a needed safety valve. 10. " Rare earth " is the name given to a group of elements in the periodic table. periodic 英英释义 adj 1. recurring or reappearing from time to time e.g. periodic feelings of anxiety Synonym: occasional 2. happening or recurring at regular intervals e.g. the periodic appearance of the seventeen-year locust Synonym: periodical |
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