在逐点比较法直线插补中,以Fm为计算偏差,以(Xm,Ym)为刀具当前坐标,以(Xm+1,Ym+1)为刀具未来的进给坐标点,试简述第一象限内的直线插补步骤,完成4个象限的插补坐标关系式。

两红线桩A、B的坐标分别为xA=1000．000m、yA=2000．000m，xb=1060．000m、yb=2080．000m；欲测设建筑物上的一点M，xm=991．000m、ym=2090．000m。则在A点以B点为后视点，用极坐标法测设M点的极距DAM和极角∠BAM分别为：（）

工件坐标系就是在机床坐标系里的一个加工工件的坐标位置，即确定这个工件所放的位置。

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。

Demand curve（or demand schedule） 需求曲线（或需求表）

M点的高斯平面直角坐标XM=3276000m，YM=19643800m，该点所在六度投影带的带号为（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。