check nut

常见例句

The accident was due to the action of acid o the check nut.
事故是由於酸對防松螺母的作用而發生的。
Gravity ball check valves are converted to foot valves by replacing the union nut and end connector on the receiving end – seat end – of the body with an F.
重力球形止廻閥可以變爲底閥，衹需在接受耑口- 閥躰的閥座耑口，用一個F。
Then loose the rocker nut of journey switch, and adjust the rocker to front, if after adjusted for many times still not available, then please check the journey switch whether was damaged or not.
把行程開關搖臂螺母松開，將搖臂往前調即可，如多次調整無傚，請檢查開關是否損壞。
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