We'd have to design new propulsion, navigation, hibernation and life support systems.

我们须设计新的推进，导，冬眠和生命支持系统。

The American space agency NASA describes Goddard as " the father of modern rocket propulsion."

美局NASA称戈达德为“现代火箭推进之父”。

We currently have nuclear propulsion systems.

我们目前拥有核推进系统。

A firecracker is a rocket because it has a propulsion system.

爆竹是火箭，因为它有一个推进系统。

The submarine's nuclear propulsion system is said to be unaffected.

据说这艘潜艇的核推进系统没有受到影响。

NASA wants more time to examine problems with Starliner's propulsion system.

NASA希望有更多的时间来检查星际客机推进系统的问题。

Bruce Banerdt, a planetary geophysicist at the Jet Propulsion Lab in California.

加州喷气推进实验室的行星地球物理学家布鲁斯·巴纳特说到。

And hopefully we'll have new kinds of propulsion coming along as well.

希望我们也会有新的推进器出现。

The first electric propulsion engines were actually developed in the 50s and 60s.

最初的电力推进引擎，是在上世纪五六十代发展起来的。

Interesting side note, this is actually how the Jet Propulsion Lab was founded.

趣味附注喷气推进实验室就是这么建立的。

The technological conscience of this effort is the jet propulsion laboratory's chief engineer, Gentry Lee.

面的成就来自喷气推进实验室的总工程师真特瑞·李。

Why was she not allowed into the engineers' lectures on orbital mechanics and rocket propulsion?

为什么不让她参加工程师们关于轨道力学和火箭推进的讲座？

Starliner's propulsion system is part of what NASA describes as the spacecraft's " service module."

“星际客机”的推进系统是NASA所称的“服务舱”的一部分。

The Pacific flying squid uses jet propulsion for another purpose: to launch itself right out of the water.

从水中发射出来。

SCOTT MORRISON, PRIME MINISTER OF AUSTRALIA: To stress again, this is about propulsion.

再次强调，这些武器都是动力驱动发面的。

They are working to develop advanced propulsion and habitation—where and how people will live on Mars once they get there.

正努力开发先进的助推器，以及人类登陆火星后的生活舱。

Their humbler followers, such as partridges, have a like power of strong propulsion, but soon tire.

次于野鸭和鸽子的鸟，如鹧鸪，有相似的巨大推动力，但很快会疲劳。

Hubble has revolutionized knowledge of the universe with thousands of spectacular images but has no built-in propulsion.

哈勃望远镜拍摄了数千张壮观的图像，彻底改变了人们对宙的认识，但它没有内置推进装置。

Thrust is the force that pushes a spacecraft through the air. It is produced by a propulsion system.

推力是推动天器穿越空气的力。它由推进系统产生。

One model being developed at NASA's jet propulsion laboratory is only a couple centimeters on each side.

NASA的噴射推進實驗室開發出一種模型每边只有几公分宽。