单选题Grease the roller bearings with HPgun In the sentence “HP” means ().Ahorse powerBhigh pressure compressorChand pumpDhigh pressure

单选题
Grease the roller bearings with HPgun In the sentence “HP” means ().
A

horse power

B

high pressure compressor

C

hand pump

D

high pressure


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press roller

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名词解释题press roller

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