“helical propelling sleeve”的概念、定义、翻译、参考文献-科学参考

单词	helical propelling sleeve
释义	helical propelling sleeve 螺旋推进套
随便看	length of haul length of identifier length of increment length of lay length of life length of life test length of magnetic path length of mean turn length of penetration length of perpendiculars length of pipeline length of pole arc length of queue length of railroad lines in service length of record length of residence length of run length of saw blade length of service bonus length of shift length of side length of skirt length of span length of splice length of stay

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