lighter-than-air的例句大全

Being both lighter than air and nonflammable, helium is used to inflate balloons and airships.

由于既比空气轻又不可燃, 氦用作充气球和飞艇.

Hydrogen is a useful gas for balloons. It is lighter than air.

氢气对于气球来说是一种有用的气体, 它比空气轻.

Balloons are aerostats, which means that are lighter than air when inflated.

气球是轻飞行器,也就是说,充气后, 它们会比空气轻.

Lighter than air, a song or so It'seems.

看似一首歌,或轻甚空气.

In nature, lighter-than-air volcanic lava traps bubbles of various sizes as the molten rock cools.

自然界中, 比空气还轻的各种火山灰在冷却过程中变为海底火山岩.

Hydrogen is much lighter than air.

氢比空气轻得多.

We tell the story of lighter-than-air balloons.

我们将播讲有关人类乘坐轻气球飞行的故事.

This new build makes it thinner and over a pound lighter than a 15-inch MacBook Pro with a hard drive. It is only 0.03-inch thicker than the thickest edge of the slender MacBook Air.

这种新的构造使其更薄，重量比带硬盘的15口MacBook Pro笔记本还要轻一磅多，厚度上只比纤薄的MacBook Air最厚处多0.03口。

Lighter gases have molar mass smaller than air.

轻于空气的气体的摩尔质量少于空气的.