The Common Extensible Cryogenic Engine being developed for NASA burns a mixture of liquid oxygen (-297 degrees Fahrenheit) and liquid hydrogen (-423 degrees).
这个正为NASA研发中的“通用可扩展超低温引擎”以液态氧(- 297华氏度)与液态氢(- 423华氏度)的混合物为燃料。
If a flammable cryogenic liquid is involved, the flammable mixture zone, under unusual atmospheric conditions, may extend beyond the normal fog cloud produced by condensing water vapor in the air.
如果同易燃低温液体有关，在异常大气条件下，易燃混合物地带会延伸到空气中的水蒸汽的浓缩产生的正常雾云以外。
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