带自动升降爪的链条机构的英文

chain and ducking dog mechanism

chain-and-ducking dog mechanism

• 带:    belt; girdle; ribb ...
• 自动:    voluntarily; of on ...
• 升降:    promotion and demo ...
• 爪:    claw; talon; paw
• 的:    4次方是 The fourth po ...
• 链条:    chain; catene; for ...
• 机构:    mechanism