The compressor bearing scavenge pump and generator scavenge pump are positive-displacement gear-type. The turbine bearing scavenge pump is a gerotor type. the above sentence means “压气机轴承回油泵是增压式的，涡轮轴承回油泵是常压式的”。
A.1
正确答案是A
The compressor bearing scavenge pump and generator scavenge pump are positive-displacement gear-type. The turbine bearing scavenge pump is a gerotor type. the above sentence means “压气机轴承回油泵是增压式的，涡轮轴承回油泵是常压式的”。
A.1
正确答案是A