用现役雷达识别螺旋桨飞机具有重要的军事意义。
It is of great military significance to identify propeller-driven aircraft using the active service radar.
螺旋桨轴频是被动声纳极其重要的目标识别特征之一。
The propeller shaft frequency is one of the important target recognition features for passive sonar.
研究人员们也识别了一种表现出明显食油性、不耗氧的海洋螺旋菌之中前所未知的生物系。
The researchers also identified a previously-unknown strain of ostensibly oil-gobbling Oceanospirillum that doesn't consume oxygen.
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