涂料的种类繁多，按主要成膜物质的性质可分为（）、（）和（）复合涂料三大类，按使用部位分为外墙涂料、内墙涂料和地面涂料等。

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.

在岗涉密人员保密教育时间全年为（）小时，其他人员（）小时。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

涂料按其成膜物质分（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

纤维素涂料是指天然纤维素经物理处理而作为主要成膜物质的涂料。

纤维素类涂料，由天然纤维素经化学处理而生成聚合物为主要成膜物质的一类涂料。