piston check ring 活塞护环
stern tube check ring 尾轴管止环 ; 尾轴管外端止动环
inner check ring 内挡箍
check ring perormance 止逆环的表现
pump check ring 泵止回簧
Check Ring End Gap 检测环端间隙
gas check ring 闭气环
Check Ring series 挡圈系列
As for disadvantages, it requires a special nozzle and check ring to accommodate material coming back into the injection unit.
至于缺点,它需要一个特别的喷嘴和挡圈来容纳材料的回退。
When cooking or baking, check periodically to make sure nothing is burning, and set a timer to ring when the food will be done.
在烹饪或烘烤时,定时检查以确保没有东西烧焦,设置记时器以在食物要好时进行提醒。
Though the TRANSCONTINENTAL had published "the Ring of Bells," no check was forthcoming.
《跨越大陆》虽然发表了他的《钟声激越》,却老不寄支票来。
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