查询词典 main unit

A novel regulated AC power supply unit for base stations using double PWM is presented in this paper. The main circuit and its principle of operation are introduced, and the power flow analyzed.

提出一种新的基于双PWM技术的新型通信基站稳压电源的拓扑结构，并对这种拓扑结构的主电路和工作原理进行了介绍，对其功率流进行了分析。

The main part of the hardware designs are about communication circuit design and Reset circuit design of the sink node, processor and power supply unit design of the field node.

硬件设计主要包括网关节点的有线通信电路及复位电路的设计、现场节点的处理器单元和电源单元设计，以及射频电路的设计。

For design strategy, speed 200MHz is the goal, and performance-optimized is the main point. Then, improve the mechanisms of adopting instruction pre-fetch, branch prediction, parallel execution, executive path of instruction and operation unit, and compare its results, probe into what's learning from the design.

以时脉速度200MHz为目标来作为设计策略，并将重点放在效能的最佳化部份，使用预先指令提取、分支预测、平行处理、指令执行路径以及计算单元执行路径最佳化等机制中加以改良，比较其结果并且探讨其设计心得。

Concern of this kind of credit is not to build the base with the equal rights and interests of deposit main body below condition of modern market economy, value government and company only however, especially the deposit rights and interests of state-owned unit, allow them to have relatively whole deposit advantageous position and financing right, admit to the dweller its deposit counterpoises only, negligence, privative even its proper financing claim.

这种信用关系不是建立在现代市场经济条件下的储蓄主体权益平等的基础上，而是只重视政府与企业，尤其是国有单位的储蓄权益，答应它们拥有较为完整的储蓄权与融资权，对居民则只承认其储蓄权，忽视、甚至剥夺其正当的融资要求权。

The rest of this article time control system is composed of MCS-51 Microcontroller AT89S51 do the main control unit, the external circuit with a 12MHZ crystal oscillator, 74LS164 registers, reset circuit, three buttons, LED digital tube to do quadruple the time of the device shows no the needs of extended memory, can achieve its functions.

本文所研究的作息时间控制系统是由MCS-51系列单片机AT89S51做主控部件，外围电路用12MHZ晶体震荡器、74LS164寄存器、复位电路、三个按键、四联LED数码管做显示时间的器件，不需要外扩展存储器，就能实现其功能。

The article briefs the thermal power systems and main parameters of PWR nuclear power plant AP1000 and 1 000 MW ultra supercritical unit and conduct the contrast in terms of Rankine cycle,last stage blade,bypass system,efficiency and flow rate.

文章介绍了压水堆核电AP1000与1000MW 超超临界机组热力系统及主要参数，并从郞肯循环、末级叶片、旁路系统、效率与流量方面进行了比较。

It was found that low hydrogen purity and high moisture content of the hydrogen used for deoxidation was the main cause. Countermeasures such as exhausting 90% of the waste gas from the deoxidation process to hydrogen recompression system to reduce the water content in deoxidation zone, and using hydrogen from PSA unit to replace recycle hydrogen to increase the hydrogen purity, were adopted.

参考UOP公司及其它重整装置的经验，对重整催化剂还原工艺进行了改进，将90％的还原废气排入增压氢系统，可有效降低还原区的水含量；用PSA氢替代循环氢，可进一步提高还原区氢纯度，从而提高还原反应速度，改善再生催化剂的性能，使重整反应的芳烃产率有所提高。

The molecular compositions of PCE-CGH and PCE-CGL were investigated by chromatography and chemical analysis. Rhamnose, arabinose, glucose and galactose were proved to be the main strctural unit of PCE-CGH, and trifle glucoronic acid was identified in the molecule. The compositions of PCE-CGL were relatively complicated. Inositol and amino sugars besides for glucose and galactose were also identified in its molecule.

其中，PCE-CGH主要是以鼠李糖、阿拉伯糖、葡萄糖和半乳糖为结构单元的大分子多糖类物质，并含有少量的己糖醛酸；PCE-CGL的分子组成相对复杂，除含有葡萄糖和半乳糖外，还含有一定量的肌醇和氨基糖。

The two main ones are the Special Drawing Right and the European Currency Unit.

两个主要的复合货币单位是特别提款权和欧洲货币单位。

Fig. 1 schematically shows the main part of a gear system in a unit.

图1 schematically 显示了一个齿轮系统的主要部分的单位。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失