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This article in view of present domestic uses in the power source is the thyristor static state invertor.

不能下载请报告错误，谢谢摘要本文针对目前国内用于电源是晶闸管静态逆变器。

The thyristor static state invertor's frequency range is narrow, if time sensor change, cannot carry on the frequency control.

晶闸管静态逆变器的频率范围窄，如感应器改变时，不能进行频率调节。

Every now and again, he would put the car in low gear, pull down the hand throttle, and jump from his seat to the road. Then, picking up handfuls of snow, he would run alongside the truck and throw the snow in a small tank at the side.

他不时把车挂到低档，扳下手闸，然后跳出驾驶座，从地上撮起一摔雪，跟着汽车跑几步，把雪撒入车首边上的一个水箱里。

The course provides the fundamental concepts used in the design of digital systems, including the methodology to design the combinational and sequential circuits with Boolean Algebra, Karnaugh map, and the logic elements, such as basic logic gates, latches, and flip-flops,etc.

本课程在提供数位系统设计所须具备的基础能力，包括学习以布林代数、卡诺图来设计组合逻辑与序向逻辑电路的方法，以及培养基础逻辑元件的应用能力，包括基本逻辑闸、栓锁器、与正反器等等元件。

The factory's main products are drilling accessories, 250,350 of oil, gas, water wellhead and accessories, eccentric wellhead, simple wellhead, anti-theft wellhead, Our expertise valve, Jiaopi valves, the Kazi, high and medium pressure valve, closing Valves, check valves, ball valves, needle-valve, butterfly valves, and customers may be asked to accept orders and new product development.

本厂的主要产品有钻采配件，250、350型采油、气、水井口及配件系列，偏心井口，简易井口，防盗井口，卡箍阀，胶皮阀门，方卡子，高中压闸阀、截止阀、止回阀、球阀、针型阀、蝶阀，并可按客户要求接受定货和新产品的研制。

The characteristic and application conditions of three-phase AC intelligent thyristor power module and load characteristic of klystron are presented.

简要叙述了三相交流晶闸管智能模块ITPM0的性能特点、应用情况以及速调管的负载特性。

Possess sepatated knife switch chamber,safe and reliable.

有独立的刀闸腔，安全，可靠。Ⅱ分断容量大。

High temperature of contact and junction point causes an accident due to poor contact of knife switch s contact and connector of high voltage switch cabinet and impact of load.

高压开关柜刀闸触头、出线电缆接头往往因接触不良、负荷冲击等因素引起触点和接点温度过高，造成事故发生。

In the light of participate in those who form bus to protect image each develop attack, analysed influence generatrix to protect a lot of element of logistic judgement, differ to keeping apart knife switch give an alarm, generatrix shed give an alarm to wait undertake conventional, better land solved bus differential to protect closedown program.

针对参和形成母线保护映像的各个拓扑项，分析了影响母线保护逻辑判定的诸多因素，并对隔离刀闸告警、母线差流告警等进行约定，较好地解决了母线差动保护闭锁方案。

The improvements are most likely due to the reduction of the gate leakage current and the charge injection effect.

这些效能改进的原因可以归之於经过表面处理后，闸极漏电流的降低以及载子注入的减少。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。