尺寸效应是材料的疲劳强度随零件尺寸增大而降低，这主要是因为（）。

简述量子尺寸效应与纳米材料性质。

何谓霍尔效应？利用霍尔效应可以进行哪些参数的测量？

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。

何谓链传动的多边形效应？如何减轻多边形效应的影响？

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

结构面的力学性质的尺寸效应体现在哪几个方面？