题目内容

How to say 活塞环 in English?

A. Piston ring.
B. Piston head.
C. Piston skirt.
D. Piston rod.

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How to say 凸轮轴 in English?

A. Crankshaft.
B. Camshaft.
C. Tail shaft.
D. Middle shaft.

Which of the following words is 曲轴?

A. Crankshaft.
B. Camshaft.
C. Tail shaft.
D. Middle shaft.

Which of the following words is 填料函?

A. Packing.
B. Piston head.
C. Stuffing box.
D. Gear box.

Which of the following words is 十字头?

A. Cross head.
B. Piston head.
Cylinder head.
D. Connecting rod.