在晶闸管的电流上升到其（）电流后，去掉门极触发信号，晶闸管仍能维导通。

在规定条件下，由门极触发晶闸管使其导通晶闸管能够承受而不至损坏的通态电流最大上升率称为通态电流临界上升率di/dt。

晶闸管在电力、电子技术领域中主要应用有可控整流和（）等方面。

在电力电子器件中，在选用SCR时，通常希望通态平均电压（）；

双向晶闸管与普通晶闸管一样,额定电流也用通态电流平均值表示上述描述( )

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

A salvor may be（）the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.

The （） is used for hauling in or letting out the wires or ropes.

Vessels must be（）valid certificate of nationality or certificated of registry or license.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。