查询词典 alternating tensor

An alternating electric field in synchrony with the orbital frequency of the particle produces acceleration.

与粒子的轨道频率同步的交流电场使粒子加速。

An alternating electric field in synchrony with the orbit al frequency of the particle produces acceleration.

与粒子的轨道频率同步的交流电场使粒子加速。

Key Laboratory of Computer Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences.Shanghai(200032)Abstract : The most usual problems encountered in the structure handling are tautomerism, alternating and aromatic systems. Though a number of methods have been reported in the literature, a common disadvantage is that only the convenience for processing were taken into account, but their chemical sense was rarely considered.

化学结构计算机处理中最常遇到的困难是互变现象、交替键和芳香键的处理，尽管解决这些问题的方法早有报道，但它们都有仅考虑计算机处理的方便，而很少注意其化学应用的不足。

Tchaikovsky's "Nutcracker," which the "coffee and tea dance," alternating with Arabic and Chinese music motif, because coffee is Arab, and tea of China.

柴可夫斯基的《胡桃夹子》里面的《咖啡和茶舞曲》交替采用阿拉伯和中国音乐的母题，因为咖啡是阿拉伯的，茶是中国的。

Written for the most part in common meter or ballad-meter, they can also be set to songs that use the same alternating lines of iambic tetrameter and iambic trimeter.

而诗句主要采用普通格律或民谣格律，相同的韵律格四音步和三音步相间的诗词，也可把她的诗谱成歌。

Since the discovery of the Edison effect or thermionic emission , various 真空管 devices have been developed to rectify alternating currents.

爱迪生影响或 thermionic 发射的发现，有制定纠正交变电流真空管的设备。

Anhysteric Remanent Magnetsization (ARM, peak value of alternating field is 100 mT and DC bias field is 0.04 mT) and Isothermal Remanent Magnetization induced at various fields, low temperature susceptibility, magnetic hysteresis loop and thermomagnetic analysis.

磁化率、非滞后剩磁（ARM，交变磁场峰值100 mT，直流磁场0.04 mT）、不同磁场强度下获得的等温剩磁、低温磁化率、磁滞洄线和热磁分析。

The research work of this paper is divided into five parts: The first ,according to the work characteristics of ship's auxiliary boiler, this paper is to design applied project in the automatic control system of ship's auxiliary boiler; The second, according to the work request of the cargo winch of alternating three-speed change-pole speed-adjusting, this paper is to determine adopting the method of the PLC control; The third, this paper is to design PLC application in three -phase induction motor control, to give the ladder chart, program and input and output circuit diagram; The fourth, this paper is to research the method of the ship's combined starting screen automatic control with the PLC; The fifth, this paper is to inquire the possibility of apply the PLC in ship's engine room surveillance system; According to the comprehensive analysis of above actual example of ship's auxiliary machinery automatic system with the technique of PLC; not only can use the technique of PLC to replace traditional relay-contactor control technique in ship's auxiliary machinery automatic system, but also can get the conclusion of the former is more dependable and more clever than the latter, the maintenance is more convenient, thus develop a new path for ship automation.

本文研究的工作主要包括五个部分：第一，根据船舶辅锅炉的工作特点，设计PLC在船舶辅锅炉自动控制系统中的应用方案，主要有PLC选型及输入输出点的设计，画出系统控制梯形图并分析工作原理；第二，根据交流三速变极调速起货机的工作要求，确定采用PLC控制的方法，进行控制系统的硬件设计和软件设计，并分析工作原理：第三，设计了PLC在三相异步电动机控制中的应用，给出了控制梯形图、程序及输入、输出接线图；第四，研究了用PLC实现船舶组合起动屏自动控制的方法，进行了系统的电源设计和软件设计，给出系统工作流程图；第五，探讨了船舶机舱监视系统应用PLC的可行性，将继电器报警线路改为用PLC控制报警，给出系统硬件图和软件梯形图，并分析了PLC机的选型、抗干扰和应用PLC的经济效益和社会效益等问题。综合以上船舶辅助机械自动控制系统采用PLC技术的实例分析，可以得出船舶辅助机械自动控制系统不但可以使用PLC技术取代传统的继电器接触器控制技术，而且前者比后者更可靠、更小巧，维护保养更方便的结论，从而为船舶自动化开辟了一条新的路径。无忧毕业设计网 www.5ubs.cn

His voice is a playful drawl, alternating between thunderously outspoken and almost kittenishly mocking.

他改变了足球新闻发布会原本沉闷的风格，使之变成了一种娱乐。

Uses the 89S51 monolithic integrated circuit to take the system the control core, the crystal thyratron zero has triggered the way realization alternating current supply the soft start, finally uses the multi-purpose board to build the overall system electric circuit.

采用89S51单片机作为系统的控制核心，晶闸管的过零触发方式实现交流电源的软启动，最终采用万用板来搭建整个系统电路。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？