“operation ventilation”的概念、定义、翻译、参考文献-科学参考

单词	operation ventilation
释义	operation ventilation Encyclopedia 工学运营通风释 operation ventilation运营通风为排出运营期间隧道及地下工程内部的有毒有害气体、烟尘、热量和湿气等，以达到符合卫生标准的空气环境，保证人员安全、车辆安全运行和设备正常使用所进行的洞内外气流交换工作。
随便看	operator of weak type operator overloading operator precedence grammar operator precedence parsing operator product operator product expansion operator range operator ray operator ring operator root operators'characteristic value-added telecommunication service operator scheme operator semi group operator semi-group operator semigroup operator semi-group of class C0 operator semi-group of class C_0 operator semigroup of class C0 operator set operator sine function operator space operator spectrum operator splitting operator splitting method operator-stable

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