用“ballast pump”造句大全，ballast pump造句

rotary gas ballast pump

Function test and automatic controller test for ballast pump.

ballast pump control system

In this paper, method of calculation for pumping of water vapour with gas ballast pump is introduced.

cargo and ballast pump speed control system

They are F. O. pumps， L. O. pumps, ballast pumps, fresh water pumps, sea water pumps, and bilge pumps.

ballast pump status-indicating system