英语词汇“positive buoyancy”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	positive buoyancy
释义	positive buoyancy noun : a condition of weight and mass relationships of a ship (as a submarine) in which it will float unless mechanical devices (as diving planes) are employed or unless additional weight is taken on
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