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The device produces trigger signals by controlling system then acts on valve banks, make them following the given frequency and order breakover, in the mode of spray wave to realize electromotor maximum starting torque and complete safe starting.

该装置通过控制系统产生触发信号，作用于晶闸管阀组，使其按照设定频率及顺序导通，以跳波方式实现电动机转矩最大化，使电动机完成安全起动全过程。

The breast wall concrete crack is caused by side load and temperature, and the latter plays a more important role in it.

以半掘浦十塘闸胸墙裂缝为例，认为胸墙裂缝是由边荷载和温度共同作用形成的，其中温度的因素更大。

The regulating lock,the diversion sluice and the breast wall foundation in low reaches in the jury water diversion pivot engineering in Zhalong marshland need to be filled with harsh sand.

扎龙湿地应急调水枢纽工程中的节制闸、分水闸以及下游挡土墙基础有抗冻要求需要换填中粗砂。

Currently, domestic production has successfully developed a PWR Island Grade Ⅰ electric valve, check valve; Nuclear Grade Ⅰ electric bellows globe valve, fast breeder reactor using nuclear electric bellows Ⅱ grade cut-off valves with sodium high level of nuclear valves.

目前，国内已成功研制生产了压水堆核岛核Ⅰ级电动闸阀、止回阀；核Ⅰ级电动波纹管截止阀、快中子增殖反应堆用核Ⅱ级电动波纹管钠截止阀等具有较高水平的核级阀门。

bridge rectifier is important content of second chapter in teaching material of power electronic technology, but the analysis of bridge half controlled rectifier is not enough.

在《电力电子技术》教材中，桥式结构是第二章晶闸管整流电路中的重点内容，而其中的桥式半控整流电路缺乏详细地分析。

As supplement, the thyristor three phase bridge half controlled rectifier which is not involved in teaching material is analyzed according to different control angle.

作为补充，对于教材中未涉及的晶闸管三相半控桥整流电路，本文对其不同触发角时的工作波形进行了分析。

In such circuits control of the output current is required and this is sometimes achieved by replacing some of the diodes in bridge rectifier with thyristor s, whose voltage output can be regulated by means of phase fired controllers .

在这种电路的输出电流控制是需要和这有时通过一些在桥式整流二极管的替换的晶闸管，可以触发相位控制器的方式规管其电压输出。

Flanged End-Crane cast steel gate valves are available in flanged end and butt weld ends.

法兰连接端口-美国克雷恩铸钢闸阀具有法兰连接端口和对焊连接端口两种连接方式。

Now widely used as butterfly valve, butterfly valve has been replaced.

现在随着蝶阀的广泛采用，闸阀已被蝶阀取而代之。

The first gate for the air by-way must have the following parameters: dimension is Ду 80-100, temperature upon working condition is not less then 350 centigrade degree, pressure medium is 0,3 MPa.

气体旁通的第一闸须满足下列参数：直径为80—100，工作条件下的温度不低于350摄氏度，介质压力为0.3MPa（合3.059公斤/每平方厘米）。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。