次生矿物指原生矿物在风化、成土过程中新生成的矿物，它的化学成分和性质与原生矿物相同

岩石经化学风化作用后形成的矿物颗粒称为次生矿物。

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.

When loading or discharging dry mud or cement，crew members should use goggles and（）.

Effects which are dutiable or subject to prohibitions or restrictions should be declared in （）.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

矿区地形地质图加上勘查工程、勘查线、物化探异常等值线后，称为（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。