A. valves , camshaft and timing belt B. intake valve , valve spring and pistons C. camshaft , crankshaft and valves D. valves , connecting rods and rings
A. 曲轴 B. 凸轮轴 C. 推杆 D. 气门
A. 气门座 B. 气门弹簧 C. 气门导管 D. 气门锥面
A. 曲柄 B. 凸轮轴 C. 曲轴 D. 连杆
A. 气门锥面 B. 气门正时 C. 正时链 D. 正时带
A. 气门锥面 B. 气门座 C. 气门弹簧 D. 进气门
A. low in noise B. small in resistance C. cheap in cost D. and easy in replacement
A. a valve head B. a valve stem C. a valve spring D. a valve face
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