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两台变压器并联的条件是什么？
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两台变压器并联的条件是什么？
时间：2021-12-28 22:56
关键词：
电气值班员中级考试
电气值班员考试
大学试题
工学
答案解析
<p> （1）变比基本相等；（2）短路电压基本相等；（3）接线组别相同；（4）容量比不超过（3：1）。</p>
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boost的意思是:help or encourage to increase or improve
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A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
非专职或值班电气人员，不得擅自操作电气设备。
A cabinet or space containing the controls or valves for the fixed firefighting system must be（）.
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A cabinet or space containing the controls or valves for the fixed firefighting system must be（）.
煤矿井下，非专职人员或非值班电气人员（）擅自操作电气设备。
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.
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.
If he is a common carrier，he is absolutely responsible to the owner of the goods carried （）any loss or damage to them unless caused by an Act of God or the Queen’s enemies，or the inherent vice in the goods themselves，or the negligence of the owner of the goods，or a general average sacrifice.
系统中雷达状态包括Unknown、Operational（or ON）、Failed（or OFF）、Detached。
Owners are to be responsible for loss of or damage to the goods or delay in delivery of the goods only in case the loss，damage or delay has been caused by the improper or negligent stowage of the goods．This means that（）.
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.
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