?抽气通风
抽气通风 drawing ventilation; exhausting ventilation; extract ventilation; induced draft; ventilation by extraction 抽气通风机 induced draft engine .
屋面通风排热
竖井送排风
通风及防排烟设计
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。