查询词典 zero beat

A novel zero-voltage and zero-current resonant pole soft-switching inverter was proposed to achieve zero- voltage and zero-current switching simultaneously when main power devices turn-on and turn-off. Therefore, turn-on capacitive losses could be reduced for devices which the intrinsic capacitor value cannot be neglected. Additionally losses caused by the tail current can also be reduced, when IGBTs are used as main switches.

提出一种新型的零电压零电流谐振极型软开关逆变器，可以在主功率器件开通和关断时，同时实现零电压和零电流，因此对于内部电容不能忽略的器件，可减小容性开通损耗，当绝缘栅双极型晶体管(insulated gate bipolar transistor，IGBT)作为主功率器件时，也可减小拖尾电流引起的损耗。

This paper proposes a novel zero-voltage and zero-current-switching pwm three-level converter, which introduces a block capacitor in series with the primary winding of the transformer to make the primary current to reduce to zero during zero state.

提出一种新颖的零电压零电流开关PWM三电平直流变换器，它是在基本的三电平直流变换器的变压器一次侧串入一个阻断电容，使一次电流在零状态时减小到零。

Zero residual and non-zero residual problems are discussed in different parts in this paper and the algorithm is proven quadratic convergence for zero residual problems and superlinear convergence for non-zero residual problems.

新方法将问题划分为零残量和非零残量来讨论，并证明了算法对零残量问题具有二次收敛性，对非零残量问题具有超线性收敛性。

The socket structure is provided with a zero phase trigger control unit, through the photoelectric sensing element of the unit, optical coupling can be performed to generate zero phase trigger, and the opening or the closing of a two-way thyratron in the zero phase can be accurately controlled, therefore, an electric device inserted on an output socket can be started or stopped from the zero phase, in order to reduce the electromagnetic interference and prolong the service life of the electric device, the use efficiency of the electric device can be enhanced, the power supply thereof can be saved, filtering and rectifying can be performed through a current switching unit when the alternating current power supply passes through a filtering and rectifying circuit, the noise caused by external interference and affect can be filtered, and the power supply can be respectively transmitted to a current detecting socket and the input end of the current switching unit to be detected through a temperature sensor arranged on the current switching unit.

本实用新型为有关一种插座结构，尤指为设有零相位触发控制单元，可通过其光电感测元件来进行光耦合而产生零相位的触发，且可准确控制双向闸流阀在零相位的开启或者关闭，进而达到插置于输出插座上的电器装置从零相位开始启动或者关闭，以降低电磁干扰而延长电器装置使用寿命，且可提升电器装置的使用效率及节省电源，并通过电流转换单元于交流电源通过滤波整流电路进行滤波整流，可滤除外部所干扰影响的杂讯，并分别传送至电流侦测插座及电流转换单元的输入端，而可通过电流转换单元所设置的温度感应器来进行侦测，于电路温度升高时，温度感应器可进行切断双向闸流阀的电源输出而达到保护输出插座上所插设的电器设备。

Three paramter method for solving zero input response and zero state response of DC one order circuit is presented,and zero input response and zero state response resolved from full response are identificated and demonstrated.

提出应用三要素法求解直流一阶电路零输入响应和零状态响应的方法，并对从完全响应中分解零输入响应和零状态响应进行了辨析、论证，同时指出：应用三要素法进行零输入响应和零状态响应的分解，必须服从基本定

The second section analyzes the restraint conditions of establishing zero-coupon bond yield curve in China. In order to analyze the constraint conditions of establishing zero-coupon bond yield curve, we should firstly study the current situation and problems of Chinese bond market because the data estimating zero-coupon bond yield curve mainly come from bond market which can't be separated from the analysis of the development history of bond market. So the main content of this section includes the development history of bond market, the present problems of Chinese bond market and the restraint conditions of establishing zero-coupon bond yield curve in China.

第二节分析中国零息票债券收益率曲线构造的约束条件，由于估计零息票债券收益率曲线所需要的数据主要来自债券市场，这样，要研究零息票债券收益率曲线构造的约束条件，首先必须研究中国债券市场的现状和问题，而这一切又离不开对中国债券市场发展历史的分析，因此本节的内容包括中国债券市场发展的历史沿革、中国债券市场目前存在的主要问题和中国零息票债券收益率曲线构造的约束条件三个部分。

Contrary to popular belief the mazurka does not always have an accent on the second beat; although the second beat is often important, there is no hard-and-fast rule for its accentuation, and many mazurkas don't even have a note on the second beat!

与通行的观念相反的做法是玛祖卡舞曲并不总是在第二拍上标有加重音符号；尽管第二拍通常来说很重要，但为了加强它，仍没有硬性规则，而且许多玛祖卡舞曲甚至在第二拍上没有符号！

A six-beat kick raises the legs slightly higher in the water, and the energy needed to maintain this kick during training or racing is higher than for a four-beat or two-beat kick.

六次打腿的运动员在水中抬腿的高度稍高，无论在训练中还是在比赛中，这种动作对于能量的要求都要高于两次或者四次打腿。

Some swimmers kick with a six-beat kick in freestyle (six kicks for each stroke cycle), while others use a two-beat kick or a four-beat kick.

有些游泳运动员自由泳做6次打腿（一个完整的自由泳划手周期内作6次打腿），但有些运动员则作两次或者四次。

Ciliary beat frequency was measured by digital high-speed microscope. results ciliary beat frequency of cultured human nasal epithelial cells is 10.39±1.80 hz at 25℃. ciliary beat frequency of different cilia is equal on the same cell,it is also equal from uncinate process and inferior turbinate.

结果 在25℃，体外培养的人鼻腔黏膜纤毛摆动频率是10.39±1.80hz；同一细胞任意两点纤毛摆动频率是相同的；同一来源的体外培养的钩突和下鼻甲的纤毛摆动频率是相同的。

Tom: You are right, he worked hard all the time.

你是对的。他一直都是努力工作。

Take shortcomings,failures,and mockings of others as commonplace and a drive to complete oneself,hold your own opinion over the evalution and disscution divested from others,afterwards sink into the state of eliminate mistakes if any or encourge oneself being not being influenced by the sayinngs of others or having no ideas to do.

把缺点、失败及别人的耻笑等看成是一种常事，当成完善自己的动力，对别人的评价和议论自己心中有主见，做到&有则改之，无则加勉&，不为人言所左右或无所适从。