俄罗斯生物学家 G. F. Gause 在试验室进行了大量的两个物种的实验，试验中，当只有单一的资源时，其中一个物种将会灭绝。
The Russian biologist G. F. Gause performed numerous tow-species experiments in the laboratory, in which one of the species became extinct when only a single kind of resource was available.
俄罗斯的消息人士称，这将需要更多的试验工作以及资金来证明固体推进剂可以被安全地用于载人着陆。
Russian sources said that much more experimental work and funding would be required to prove that solid propellant could be safely used for a manned landing.
巴甫洛夫斯克试验站是俄罗斯几个试验站中的一个。
The Pavlovsk experimental station is one of several such stations in Russia.
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