In term of environmental effect, the noise characteristics of gas engine are analyzed.Then, the feasibility to the noise control of gas engine is approved through practice.是什么意思_In term of environmental effect, the noise characteristics of gas engine are analyzed.Then, the feasibility to the noise control of gas engine is approved through practice.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句