单项选择题

A system of reservoirs and connecting tubes in a gyro compass is called a（）.

A.spider element
B.mercury ballistic
C.gyrotron
D.rotor

相关考题

A single vertical magnet placed underneath the compass ...

单项选择题A single vertical magnet placed underneath the compass in the binnacle is used to compensate for（）.

A.the horizontal component of the permanent magnetism
B.deviation caused by the vessel's inclination from the vertical
C.induced magnetism in the horizontal soft iron
D.induced magnetism in the vertical soft iron

A compass card without north-seeking capability that is...

单项选择题A compass card without north-seeking capability that is used for relative bearings is a(n)（）.

A.bearing circle
B.pelorus
C.bearing bar
D.alidade

（）is on the panel of DF.A.RINGS INTB.SWEEP INTC.REPEATE...

单项选择题（）is on the panel of DF.

A.RINGS INT
B.SWEEP INT
C.REPEATER
D.GONIOMETER

GPS、DF及LC的使用

A system of reservoirs and connecting tubes in a gyro compass is called a（）.