“flap valve”的概念、定义、翻译、参考文献-科学参考

单词	flap valve
释义	flap valve [`flap ´valv] ^{MECHANICAL ENGINEERING} A valve fitted with a hinged flap or disk that swings in one direction only.
随便看	fire-direction net fire disclimax fire distribution fire door fired process equipment fired state fire effect fire escape fire-exit bolt fire extinguisher firefinder fire flooding firefly fire foam fire for adjustment fire for effect fire-formed fragment fire fountain fire hook fire hose fire hydrant fire interrupter fire line fire load fire opal

科学参考收录了103327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。