neck of tube

例句：

1. 1. The engineer carefullymeasured the length of the neck of thepipe.
   工程师仔细测量了管道的管颈长度。
2. 2. The scientist used a microscope to examinethe neck of the sample.
   科学家使用显微镜检查样本的管颈部分。
3. 3. The artist painteda beautiful portrait of the woman'sneck of tube.
   艺术家绘制了一幅美丽的肖像画，描绘了女人的管颈部分。