液压瓣升降杆 液压式气门挺杆的英文

hydraulicvalvelifter

• 液压:    hydraulic pressure
• 瓣:    petal clove; segme ...
• 升降:    promotion and demo ...
• 杆:    shaft; rod; bar
• 式:    type; style
• 气门:    air door; air valv ...
• 挺:    stick out; bulge o ...