查询词典 lagging

The converter can be improved just by exchanging the position of the resonant inductance and the transformer such that the transformer is connected with the lagging leg. The improved converter has several advantages over its counterpart, e.g., the clamping diodes conduct only once in a switching period, and the resonant inductance current is smaller in zero state, leading to a higher efficiency and reduced duty cycle loss. The operation principle of the improved converter and the comparison with the original converter are analyzed in this paper. The effect of the blocking capacitor in series with the transformer or resonant inductance is discussed, and a best scheme is determined.The improved converter is adopted to design the DC/DC converter of secondary power supply in HVDC power system.

本文将谐振电感和变压器交换位置，使变压器与滞后桥臂相连，这样箝位二极管在一个开关周期中只导通一次，同时零状态时谐振电感电流较小，有利于提高变换效率和减小占空比丢失，本文分析改进后变换器的工作原理，并与改进前的变换器进行对比，讨论隔直电容在不同位置对变换器工作的影响，确定一种最佳工程方案。

The converter combines the advantages of the PWM technique and soft-switching technique, the PWM is effected all over the whole loads range, and soft-switching is effeted only in the switching transition period, the ZVS of leading-leg is achieved by using the energy stored in leakage inductor of the transformer and the output inductor, the ZCS of lagging-leg is achieved by using a blocking DC capacitor, the ZVS and ZCS are achieved for the whole load ranges (5A~250A).

控制电路采用相移控制方式，综合了PWM控制和软开关技术的优点，在大范围内实现PWM控制，而在功率器件换流期间实现软开关换流，其中超前桥臂利用变压器的漏感，实现了零电压开关，滞后桥臂利用隔直电容，实现了零电流开关，并且整个变换电路能在（5A~250A）的范围内实现软开关工作条件，满足弧焊电源负载变化大的特点。

In the dissertation, principles of phase-shifted full-bridge ZVS PWM and push-pull boost converter are analyzed; Reason of duty ratio dropping out and solution measures are introduced at the same time; The magnetic biasing and ZVS methods of Lagging brachium are studied detailedly in the bidirectional DC converters.

在本文中首先分析了移相全桥式ZVS-PWM功率变换和推挽式DC／DC Boost功率变换的工作原理，分析了移相全桥式滞后臂实现零电压关断困难以及占空比丢失的原因以及采取相应的改善措施，分析了双向DC／DC变换器产生偏磁的原因以及采取抗偏磁的措施。

I'm ahead in Manhattan and Brooklyn but I'm lagging in the Bronx.

我在曼哈顿和布鲁克林领先但我在布朗克斯区落后

Cosco's volumes, which have been estimated at 5.2 million teu and comprise a mix of international and domestic cabotage traffic, grew by about 13% last year, with Evergreen lagging the market with growth of 8% to 4.75 million teu.

估计中远集团去年的总运输量是520万个标准箱，包括国际航线和国内业务在内，增长了13%；名列第三的 Evergreen 长荣集团稍逊一筹，增长率为8%，达475万标准箱。

But with the fact that colleges and universities educational reform tide ceaselessness springs up, aerobics teaching studies the lagging phenomenon has appeared.

但是随着高校教学改革浪潮的不断涌现，健美操教学研究出现了滞后现象。

In the late half of 20th century, the visual angle of Chinee studies in Japan probed to view China using a new light andchanged the old view that seeing China as a backward country lagging behind in the process of modernization.

20世纪后半叶，日本汉学研究的视角改变了以往把中国视为在现代化道路上落伍的后进国家的看法，转换了审视新中国的眼光。21世纪前半叶日本汉学理想的研究视角应当是：我们怎样在认识中国时，把欧洲的现代与社会主义加以相对化？

The percentage of the cell observed chromosome lagging in A1 and the percentage of abnormal cell in TI showed a greatly significant positive correlation. That may demonstrate chromo

相关分析表明后期Ⅰ染色体滞后细胞比率同末期Ⅰ异常细胞比率呈极显著的正相关，推测后期Ⅰ染色体分离和末期Ⅰ微核形成可能是由相同的显性单基因或主效基因控制。

The Central Geological Survey report pointed out that though Taiwan has rich methane clathrate resources, Taiwan is still lagging behind advanced nations in Europe and America the related probe equipment, technology, and experience.

中央地质调查所的报告指出，台湾虽有丰富的可燃冰资源，但相关探测设备及技术经验仍落后欧美先进国家。

Calculation of diffusion index, a leading, synchronization, lagging indicator composite index.

计算扩散指数、领先、同步、滞后指标综合指数。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。