“hole steel propeller”的概念、定义、翻译、参考文献-科学参考

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单词	hole steel propeller
释义	hole steel propeller 钢制空心螺旋桨
随便看	present worth present worth analysis present worth basis for comparison present worth comparison present worth comparison method present worth factor present worth method present worth of salvage present yield preservation preservation of cultural relics preservation of ecology preservation of fertility preservation of game preservation of organs for grafting preservation of physical evidence preservation of soil moisture preservation of the natural environment preservative preservative agent preservative engine oil preservative film preservative fluid preservative liquid preservative lubricating oil