输出继电器（OR）通过一对（）触点将PLC的控制信号传递给负载。

线性系统稳定的充分必要条件是：系统特征方程的根（系统闭环传递函数的极点）全部具有负实部，也就是所有闭环传递函数的极点都位于s平面的左侧。

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.

简述线性定常控制系统稳定性的充分必要条件。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

连续控制系统稳定的充分必要条件是（）。离散控制系统稳定的充分必要条件是系统的特性方程的根都在Z平面上以原点为圆心的单位圆内。

华北水利水电大学（花园校区）位于（）。

Cote Or科多尔位于（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。