首页/ 题库 / [单选题]低压软起动器的主电路通常采用()形式。的答案

低压软起动器的主电路通常采用()形式。

单选题
2022-03-15 19:28
A、电阻调压
B、自藕调压
C、开关变压器调压
D、晶闸管调压
查看答案

正确答案
D

试题解析

相关题目
boost的意思是:help or encourage to increase or improve
eloquent的意思是:fluent or persuasive in speaking or writing

A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.

指令ORS功能,可实现多个指令块的“与”运算。
Logistic回归系数与优势比OR的关系为()。
直接起动时的优点是电气设备少,维修量小和()。
Mainly east 3 or 4 partly cloudy to overcast occasional rain()slowly south moderate or good.
()any case or suspected case of quarantinable disease,or any case of eruptive disease or any death be discovered,the local quarantine officer must be notified immediately.
Should any case or suspected case of quarantinable disease,or any case of eruptive disease or any death be discovered,the local Quarantine Officer must be()immediately.
阅读电气安装图的主电路时,要按()顺序。
Masters are()solely responsible for all damages or accidents of whatever kind resulting from the navigating or handling of their vessels by day or by night.
系统中雷达状态包括Unknown、Operational(or ON)、Failed(or OFF)、Detached。
The carrier is liable for loss of or damage to the goods or delay in delivery caused by fire,()the claimant proves that the fire arose from fault or neglect on the part of the carrier,his servants or agents.
Shutdown price(or point,or rule) 停业价格(或停业点、停业原则)
翻译:With Average or With Particular Average(WA or WPA)()
低压软起动器的主电路通常采用()形式。
软起动器控制电路的触发同步信号取自()。
可采用标准电路和内三角电路的西门子软起动器型号是()。
何谓软起动器?交流异步电动机采用软起动器有什么好处?
()shall be liable for loss of and damage to the Vessel and/or goods arising or resulting from inaccuracies in stating the description,quantity,weight,measurement or contents.
广告位招租WX:84302438

免费的网站请分享给朋友吧