“helical spool”的概念、定义、翻译、参考文献-科学参考

单词	helical spool
释义	helical spool 螺旋槽阀芯
随便看	wedge lines wedge method (纸浆取样的) wedge micrometer wedge mount wedge nozzle wedge-nut bolt wedge-nut expansion shell bolt wedge of buoyancy wedge of emersion wedge-opening-loading wedge pattern wedge phosphorus wedge photometer wedge piece wedge pile wedge pin wedge-planting wedge plug wedge press wedge pressure wedge probe wedge product wedge prop wedge pyrometer wedge relaxation function

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