Jacknut
起重螺帽(装在气缸体上, 拆卸时用)
🗣️ 情景例句
We really don't have to be overly concerned.
我们真的不需要过分担心。
I am really proud of my department and my staff.
我为我的部门和员工们感到骄傲。
It will be found that the weight moves but slightly or not at all.
结果会发现，重物是动了，但动得很小，甚至没动。