The bond between inner plastic lining and steel tube base metal of that steel plastic clad tube is good, and the service life is long.

所生产的钢塑复合管道其内衬层与钢管基体贴合好、使用寿命长。

youdao

A thermometer often now, and more often back in the early 1800s, consists of a glass tube up which a column of mercury or alcohol can travel from a reservoir at the base.

现在常见的温度计由一个玻璃管和一个位于底部的贮液槽组成，贮液槽中的水银或酒精沿玻璃管上升形成液柱。

youdao

An international team of scientists say they've discovered a protected lunar "lava tube" - a deep, giant hole - that might be well suited for a moon colony or a lunar base, CNN reported Sunday.

据美国有线新闻网3日报道，一个国际科学小组宣布，他们在月球上发现了一个又大又深的垂直"熔岩洞"，可能适宜人类移民月球或修建月球基地。

youdao

Some cite the velocity of the monetary base that existed in the past and assume it is still relevant, but the You Tube rocket of the base rising into the stratosphere is matched by an offsetting plunge of its velocity reaching all the way to China.

FORBES: Where Chinese And Americans Agree: An Irrational Fear Of The Fed