They also made great propellants, foaming agents, and fire-retardants.

用它还可以制造很好的推进剂，发泡剂和阻燃剂。

The rocket uses liquid propellant, which makes it more environmentally friendly than previous modules.

“长征七号”是一枚采用环保无毒的液氧煤油发动机的大型液体运载火箭，这样就比先前的配置更为环保。

The Long March-11 is the only series in the Long March family that uses solid propellants.

长征11号是长征家族中唯一一个使用固体推进剂的火箭。

Solid rocket propellant burns very rough.

固体火箭推进剂剧烈燃烧。

But then you also have a liquid propellant in the form of liquid hydrogen and liquid oxygen.

我们还有液体推进剂，就是液态氢和液态氧。

And the tanker refills the propellant tanks of your starship.

加油机会把星际飞船的推进剂罐加满。

Liquid oxygen is one of the propellants that fuels the Atlas V into space.

液氧是阿特拉斯5号进入太空的推进剂之一。

I recognise the paint. It's like Michigan...hard-core propellant. I'd say zinc.

我认得这涂料，像是密歇根牌，某种硬核涂料喷射剂，我猜是锌。

Well, Starship will conveniently refill its propellant tanks in space with methane and oxygen.

星际飞船会方便地在太空中用甲烷和氧气填充它的推进剂罐。

However, a rocket burns fuel called propellant to push away from Earth and against gravity.

而火箭通过燃烧一种称为推进剂的燃料来远离地球并对抗重力。

Critical pre-launch tests have been hampered by issues with propellant loading and a malfunctioning helium check valve.

关键的发射前测试因推进剂装载问题和氦止回阀故障而受阻。

It's fueled by liquid propellant made of liquid oxygen and kerosene, which is meant to cut down on pollution.

长征六号运载火箭采用液氧煤油发动机以减少污染。

So, keeping the propellants cold improves the performance of the rocket.

因此，保持推进剂低温可以提高火箭的性能。

So you just refill propellants and go again.

所以你只需重新装满推进剂，然后再去。

So it doesn't use exotic propellants or things that are difficult to obtain on Mars.

所以它不使用外来推进剂或在火星上难以获得的东西。

This propellant is made from separating water into hydrogen and oxygen.

这种推进剂是将水分解成氢和氧制成的。

First, SpaceX launches a Starship modified to serve as a propellant depot.

首先，SpaceX发射一艘经过改装以用作推进剂库的星际飞船。

They're only 1% of the mass of the total rocket, propellant and all.

它们只占整个火箭、推进剂和所有东西质量的 1%。

Aerospace engineers use something called a gravitational slingshot to alter a spacecraft's path without using too much propellant.

航空航天工程师使用一种叫做重力弹弓的东西来改变航天器的路径，而无需使用过多的推进剂。

NASA says this final part " is expected to require a new or modified spacecraft using a large amount of propellant."

美国宇航局表示，这最后一部分操作“预计需要一种使用大量推进剂的全新或改进的航天器”。