“helve ring”的概念、定义、翻译、参考文献-科学参考

科学参考收录了1248194条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。

单词	helve ring
释义	helve ring 柄圈
随便看	operating overhead expense operating panel operating performance operating performance income statement operating performance ratio operating period operating personnel operating piston operating pitch radius operating platform operating point operating position operating post operating power operating pressure operating pressure angle operating pressure cycles operating principle operating procedure operating-process chart operating profit operating programs operating program tape (OPT) operating range operating rate