钢筋与砼的粘结作用由（）等几个部分组成。

光面钢筋与混凝土的粘结作用由化学胶着力、（）和（）三部分组成。

变形钢筋的粘结力有三个方面组成：混凝土握固钢筋的摩擦力；水泥胶凝体与钢筋间的胶合力；钢筋表面凹凸不平与混凝土之间的（）。

无粘结预应力是指在预应力构件中的预应力筋与砼没有粘结力，预应力筋张拉力完全靠构件两端的锚具传递给构件。无粘结预应力筋主要由钢材．（）组成。

无粘结预应力是指在预应力构件中的预应力筋与砼没有粘结力，预应力筋张拉力完全靠构件两端的锚具传递给构件。无粘结预应力筋主要由钢材（）组成。

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。