查询词典 reverse

World trade has plunged. As recently as the first half of 2008, boosted by rising commodity prices and a falling dollar, trade was growing at an annualised 20% in dollar terms. In the second half of 2008, as commodities sagged and the dollar rose, growth slowed fast; by September, says the IMF, it was in reverse.

全球贸易陷入困境，2008年上半年，物价飙升，美元贬值，以美元计，贸易年增长20%，08年下半年物价下降美元升值，贸易增速迅速放缓，到9月止，国际货币基金组织称贸易量正在下跌。

The core circuit adopting differential negative resistance structure with resistor feedback achieves good phase noise performance.The 2 bit switch capacitor array provides extra tuning range.The output buffer of common source structure is of decent reverse isolation.

电路核心采用带电阻反馈的差分负阻结构，因此具有良好的相位噪声性能；2bit的开关电容阵列进一步提高了电路的调谐范围；共源级输出缓冲提供了较好的反向隔离度。

With this mode of working the base-emitter circuit is the input side;and the emitter through base to collector circuit the output side.although these have a common path through base and emitter, the two circuit are effectively separated by the fast that as far as polarity of the base circuit is concerned,the base and upper half of the transistor are connected as a reverse biased diode.hence there is no current flow from the base circuit into the collector circuit.

这一工作模式下，基极-发射极电路是输入端，发射极通过基极，再到集电极电路的输出端。虽然它们都有一个共同的路径通过基极和发射极，这两个电路是通过和基极电路相关的尽可能的有效快速分离开的，基极和基极以上的一半以上的晶体管作为一个反偏二极管与之相连接。

Furthermore, reverse recovery losses of main diodes are minimized, and auxiliary switches commutate at zero current.

此外，续流二极管的反向恢复损耗被降低到最小，辅助开关也实现了零电流开关。

In this paper, investigate basic half bridge Three-Level DC/DC converter, the operation and parameter design are disused ,second side commutate diode reverse furbish bring high pinnacle on the main switches.

本文首先给出了基本半桥式三电平DC/DC变换器，详细分析了其工作原理，讨论了主要参数的设计和由于次级整流二极管的反向恢复导致主开关管的电压尖峰。

By the comparison of electronic spectrum and Z-scan of different substituted MPc and MNc, the peripheral substituted MNc had better nonlinear optical properties. It provided a new method to the improvement of the performance of reverse saturable absorption of the laser protective materials.

对不同金属轴向取代的萘酞菁化合物的电子光谱和Z-扫描进行了横向比较，并对相同取代基、金属轴向取代的酞菁化合物和萘酞菁化合物进行了纵向比较，发现周围取代的金属萘酞菁化合物具有较好的非线性光学性能，为提高材料的反饱和吸收性能提供了一种新的途径。

In part 1, we explore some properties of solution y of a backward stochastic differential equation, such as comparison theorem, reverse comparison theorem and uniqueness theorem of generator.

第一部分研究了倒向随机微分方程的解中y的性质，其中包括解的比较定理，逆比较定理，生成元的唯一性定理。

The points of the compass rose on the reverse are modeled with the central portion plain for engraving the name of the recipient.

方位的点的反向上涨与中央部分为雕刻的收件人姓名平原建模。

His main research interests include computer language, compiling system, program comprehension, reverse engineering and software engineering.

主要研究方向为计算机语言、编译系统、程序理解、逆向工程和软件工程。

One of the key research issues in Reverse Engineering is the geometric modeling of complex surface.

逆向工程是20世纪80年代发展起来的一门新技术，其研究重点之一是复杂曲面零件的几何模型重构[1]。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。