Rocket motor test shows that the new UDMH/NTO bipropellant can satisfy the requirement of gel propellant of rocket motor design.

发动机试验表明：新的UDMH/NTO双组元凝胶体系能够满足发动机设计对凝胶推进剂的要求。

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Unsymmetrical dimethylhydrazine (UDMH) is the main fuel of liquid rocket propellant. Stress is always laid on the pollution of UDMH to water.

偏二甲肼（UDMH）是 液体 推进剂的主体燃料，其对水体的污染一直倍受重视。

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The adsorption, desorption performance of strong acidic ion-exchange fiber (IEF) for unsymmetrical dimethyl hydrazine (UDMH) was investigated.

研究了强酸性离子交换纤维对偏二甲肼的吸附、解吸性能。

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What is more, most of the 13 tonnes is made up by the propellants unsymmetrical dimethylhydrazine (UDMH) and dinitrogen tetroxide (DTO), both of which are toxic.

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There will be a self-ignition of the UDMH and if it does not all burn up, it will be so dispersed there will not be a critical concentration.

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The propellants, unsymmetrical dimethylhydrazine (UDMH) and dinitrogen tetroxide (DTO), are highly toxic but they will almost certainly be consumed in the fireball that engulfs Phobos-Grunt when it makes its death dive to Earth.

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