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 （）.

The（）may examine or re-examine the goods or take samples from them straightaway in the absence of the consignee or the consignor whenever it considers this necessary.

（）are liable to be stoten, pilfered or may damaged due to improper handing or stowage.

Banks have no liability for any delay or loss caused by postal or telex failure.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

采用高铬镍焊条焊接不锈钢与碳素钢焊接接头，可以获得满意的（）。

《现场设备、工业管道焊接工程施工及验收规范》不适用于施工现场组焊的什么焊接工程？

（）基体的热强钢具有最高的热稳定性和较高的再结晶温度。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。