According to the trait of rocket propellant a kind of protective gloves made of composite fluorine rubber is developed which can be used to protect the skin of red fuming nitric acid worker.

针对火箭推进剂作业的特点，研制了一种以复合氟橡胶为主体材料的防护手套，可用于红烟硝酸作业人员的皮肤防护。

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Although other electric propulsion systems exist, they require a pressurized container to store the propellant.

尽管其他电力推进系统存在，他们需要一个高压的容器来贮存推进剂。

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To achieve the right mixture of propellant, the patent presents a hybrid rocket motor that would use 3-d stereolithography to essentially print the fuel.

为了准确地得到推进剂混合物，专利方案里展示了一个利用3 - D立体平版印刷术打印出燃料的混合动力火箭发动机。

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"It has so much capability, so much more capability than any other vehicle, that I think we can start to contemplate missions like a Mars sample return, which requires a tremendous amount of lift capability because you've got to send a lander to Mars that still has enough propellant to return to Earth."

VOA: special.2011.04.11

We had considered making a cannon that used ignited hair spray as a propellant but after a bit of research discovered that air pressure was far more effective.

FORBES: The Supersonic Ping-Pong Gun

The problem appeared to be "an issue with a propellant valve, " SpaceX spokeswoman Christina Ra said.

CNN: STORY HIGHLIGHTS

The ESA-supported project started in 2005, and would use a propellant based on liquid oxygen and hydrogen.

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