... 两端有螺纹的管子 threaded tube 有螺纹的 抽头的 tapped 两端有螺纹的螺栓 rod threaded at both ends ...
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threaded flue tube 螺纹烟管
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。
During coronary angiography, a thin tube (catheter) is threaded through a blood vessel into the heart, where a special dye is injected.
在冠状动脉造影时，一个细管(导管)通过血管进入心脏，注入一种特殊的染料。
Laparoscopic, in which needle electrodes within a thin, plastic tube is threaded through a small hole in the skin in a procedure called a laparoscopy.
腹腔镜检查方式——其中电极针通过一个小孔在很细的塑料管进入组织。
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