英语词汇“permanent ballast”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	permanent ballast
释义	permanent ballast permanent ballast A weight permanently installed on an aircraft to bring its center of gravity within specified limits. In some aircraft, fuel is used as a ballast. This fuel, however, cannot be consumed for use.
随便看	amphipoda amphipodous amphipods amphiprion amphiprion percula amphiprostylar amphiprostylarly amphiprostyle amphiprostylely amphiprotic amphiproticly amphiprotic solvent amphipyrenin amphiregulin amphiregulin-associated protein amphirhina amphisbaena amphisbaenas amphisbaenia amphisbaenian amphisbaenians amphisbaenic amphisbaenid amphisbaenidae amphisbaenids

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