单词	jar coupling
释义	jar coupling 震击器
随便看	auxiliary bones auxiliary book auxiliary books auxiliary boost auxiliary booster auxiliary booster grain auxiliary box auxiliary brake auxiliary brake cylinder auxiliary brake equalizing lever auxiliary brake shoe auxiliary braking auxiliary braking set auxiliary branch breaker auxiliary break contact auxiliary break-contact auxiliary breaker auxiliary breaking auxiliary breaking, preliminary breaking auxiliary breakwater Auxiliary breath auxiliary bridge auxiliary brush auxiliary bucket ladder auxiliary bud culture of mulberry tree