石油沥青按（）分为道路沥青、建筑沥青和特种沥青三种。

根据()，石油沥青分为道路沥青、建筑沥青和普通沥青。

道路石油沥青和建筑石油沥青的牌号是按其软化点划分的。

为加强沥青道路的面层之间及沥青面层与水泥混凝土面层之间的粘结而洒布的沥青材料薄层被称为（）。

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。

沥青被广泛应用于防水、防腐、道路工程和水工建筑中。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。