各类砌体轴心抗压强度主要取决于块体和砂浆的抗压强度。

对于砌砖的砂浆，水灰比越小，砂浆的强度越大。

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。

一般情况下，砌体强度随块体和砂浆强度的提高而（）；

影响砌体抗压强度的主要因素有砌体与砂浆的强度，砂浆性能，砌体尺寸、形状与灰缝的厚度和砌筑质量。

采用纵缝分块时，纵缝间距越大，则块体水平断面越（），则纵缝数目和缝的总面积越（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。