英语词汇Back Up Ventilation怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	Back Up Ventilation
释义	Back Up Ventilation 翻译后备通风以上为机器翻译结果，快速获取精准的人工翻译结果，建议选择有道人工翻译网络释义短语 1 back-up ventilation 备用通气双语例句 1 The calculation models are set up on average speed and Max speed in back field and jet effect distance, new theoretical reference is provided for effective ventilation in heading fa. 给出了回流区平均速度、最大回流速度及射流作用距离的计算模型，为掘进工作面合理有效通风提供了新的理论依据。
随便看	environmental damage environmental damage cost environmental data environmental data acquisition system environmental data base environmental data base guides environmental data buoy environmental data network environmental data service environmental decay environmental decision environmental decisionmaking environmental defence fund environmental defense Environmental Defense Fund environmental degradation environmental density environmental dependence and change environmental deprivation environmental deprivation scale environmental description environmental description scale environmental design environmental design criteria Environmental Design Research Association

英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。