如果被测量的真值为L，被测量的测得值为l，则测量误差δ用（）表示。

《铁路测量技术规则》中规定的贯通误差分配原则是（）。

测量误差的大小决定了测量的精度，测量误差（），说明测量得值（）于真实值，而测量精度越高。

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（）.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

测得值与真实值之间的符合的程度叫（）。误差越小，（）高。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。