“pig valve”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	pig valve
释义	pig valve 猪瓣膜
随便看	natural proportion natural proportional limit natural protection area natural protein fibre natural pruning natural purification natural quarrying natural quartz natural radiation natural radiation belt natural radiation environment natural radioactive decay natural radioactive element natural radioactive gas natural radioactive nucleus natural radioactive series natural radioactivity natural radioactivity background natural radio-frequency interference natural radionuclide natural range natural rate of interest natural rectifier natural red natural reference frame