forced ventilation强制: force; compel; coerce换气: take a breath; aeration chan ...曲轴箱强制换气: pcv间歇性强制通气,间歇性强制换气: intermittent mandatory ventilation同步间歇性强制换气,周期性同步强制式通气: synchronized intermittent mandatory ventilation下载手机词典可随时随地查词查翻译