... Length 0.5m » 长度0.5米 upper sleeve » 上部套 Our dreams are young And we both know » 我们的梦想很年轻,我们都知道 ...
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Upper sleeve ring 上部轴套密封环
The upper sleeve is connected with the lower sleeve via a threaded tube.
上套 管和下套管通过螺纹管连接在一起。
If you don't have a tissue, cough or sneeze into your upper sleeve, not your hands.
如果你没有棉纸巾,咳嗽或打喷嚏时对着你的上衣袖子,不要用你的手。
The lower end of the inner upper rod is connected to a lower rod sleeve.
在上杆的内下端连接到一个较低的杆套。
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