A.injection
B.penetration
C.atomization
D.compression
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A.gears
B.rams
C.barrels
D.cams
A.is purified
B.in timed
C.is compressed
D.atomizes
A.crown and skirt
B.liner and jacket
C.ring and groove
D.jacket and block
A.thinner
B.thicker
C.smoother
D.rougher
A.telescopic pipe
B.large bore pipe
C.generating pipe
D.central pipe
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