界址距离测量可用电磁波测距仪或钢尺，使用电磁波测距仪时，距离一般不超过（）m，个别放宽至300m。

高程测量的方法有电磁波测距三角高程测量法和()。

对向电磁波测距三角高程测量可以减弱和消除（）的影响

下列（）不符合电磁波测距三角高程测量代替水准测量的规定。

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。

在测量学科中，距离测量的常用方法有钢尺量距、电磁波测距和（）测距。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。