输出继电器（OR）通过一对（）触点将PLC的控制信号传递给负载。

根系吸收水分与水分上升的动力是根压力和（）。

为什么世界很多国家发展核电？现今世界核电发电量是多少？

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。

我国的核能技术路线是：2020年前，主要通过引进消化吸收，发展第（）代核电技术；2030年前，掌握第（）代核电技术，开始建设首台商用快堆。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

什么是动力电路？什么是控制电路？