玻璃管

A good glassblower could make a glass tube like this one in fifteen minutes.

一个璃管工十五分钟能制作一个这样璃管。

The Cryophorus consists of a glass tube with a bulb on each end containing water and water vapor.

此冰晶体形器是一细长璃管两并各有一璃球,球里有水和水蒸气。