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  • “contrapropeller”的英英意思

    “contrapropeller”的英英意思

    单词 contrapropeller 释义 contrapropeller|kntrprpl(r)|[f. contra- 2 + propeller.]One of a pair of propellers having concentric shafts and rotating in opposite directions; a contra-rotating propeller. Hence abbrev. contraprop |-prp|.1927N. Skene Elem. Yac...

    2025-12-28