thd的例句大全

A study of the influence of reinforcement arrangement and thd thickness of concrete covering upon the rupture resistance of reinforced concrete bending members

配筋和砼保护层厚度对钢筋砼受弯构件抗裂度影响的试验研究

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The Thermo-hydrodynamic ( THD) effect in non-contact mechanical seals includes the thermal wedge caused by the frictional heat of the fluid film and the hydrodynamic wedge of the shallow grooves fabricated on the end face of the rotating sealing ring.

非接触式机械密封中的热流体动力效应包括密封环端面受热变形后引起的热楔效应和端面上动压槽引起的动力楔效应。

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An ethylation catalyst Z 937 with suitable stability were prepared on thd basis of NL.

在NL原粉基础上，制备了具有一定稳定性的乙基化催化剂Z937。

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In case that thd specific conditions for simplifying the calculation cannot meet the requirement, the dead cycle phenomena appears.

当出现不满足简化特定条件时，常出现死循环现象。

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Design of APFC Controller with THD Optimizer Circuit Based on BCD Process

基于BCD工艺的优化THD有源功率因数校正控制器设计

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Study on the exploitable and utilizable value of thd old leaf of chinese toon

香椿老叶开发利用价值研究

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During the start up of SFC period, much harmonic current are generated and cause the voltage source in the grid to be distorted, THD in gird increase.

使用变频启动装置过程中会产生大量谐波，造成电网电压畸变率增大。

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The discussion of a new method in judging thd overall state of polluter

污染物总体状况评价新法初探

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If we want Chinese football to have a great development, it is very important to strengthen thd training work of Chinese football players in reserve.

中国足球要想得到较快与较大的发展，加强足球后边备人才培养工作显得尤为重要。

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Furthermore, to improve the power factor, a novel design can considerably minimum THD of the AC input current by increasing the switch-on time near the zero-crossings of the line voltage.

另外芯片内部还特别加入了一个优化电路，可以增大功率开关管在交流输入电压过零时的导通时间，优化输入交流电流的THD，进一步改善功率因数。

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Simple and Low Cost THD Minimum Circuits For PFC Boost Converter

PFC升压变换器简单低成本THD最小电路

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I had no sooner said so but thd other gentlewoman cried out," a pickpocket!"

我一喊，那位太太也跟着喊道，“有扒手！”

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Development Conditions of VE buoy have matured in China, but thd burden if heavy and the road is long.

我国发展VE浮标的条件已经成熟，但是任重道远。

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Monastery and the Western Culture in thd Early Middle Ages

修道院与中世纪前期的西欧文化

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The Application of Oxidize Count in thd Addition Reaction

氧化数在化学反应中的应用

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THD of the grid current is small and power factor is high at full range of loads or even in abnormal grid voltage.

全负载范围内或电网电压谐波含量大时，可实现高的输出功率因数和低的进网电流ηTHD。

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In grid-tied mode, because of the effect of the output filter capacitor, the grid-connected inverter has high THD of the grid current and low power factor at light load.

可独立与并网双模式运行的逆变器在并网模式下，由于输出滤波电容的影响，在轻载时进网电流ηTHD高，输出功率因数低。

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Applying bibliometric statistical methods to count and analyse the papers. And citations used in Journal of Liaoning Normal University ( Natural Science Edition) in thd years from 1999 to 2003.Some issues concerned were explored.

运用文献计量学的统计方法，对《辽宁师范大学学报》（自然科学版）19992003年5年间刊文和引文情况进行了统计和分析，并就有关的问题进行了探讨。

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The paper discusses the common effect of some factors: inductive effect, conjugation and hyperconjugation, on thd alkene addition reaction, and interprets with examples how to comprehend and apply correctly Markovnikov rule.

本文综合考虑诱导效应、共轭效应和超轭效应等因素对烯烃加成反应的共同影响，并结合具体实例阐述如何正确理解和应用Markovnikov规则。

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In order to solve the harmonic pollution of rectifier circuit in the power electronic devices, we must reduce the THD of input current in rectifier, increase its power factor.

为了解决电力电子装置中的整流电路所带来的谐波污染问题，必须减小整流电路输入电流的总谐波畸变率，提高它的功率因数。

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