Such stocks could stumble hard if there were a new downdraft in global markets.

如果全球市场再次出现下滑，这类股票可能会大幅下跌。

The downdraft trumped two other developments that should have shored up the market.

印度科技业前景黯淡对股市的影响显然超过了另外两个股市利好消息。

Ventilation: positive downdraft exhaust ventilation should be provided to maintain vapor concentration below TLV.

通风: 为了使气体聚集程度维持在阀极限值之下,应提供通畅的向下棋流排气通风设施.

Beijing Cherokee engine uses Cart YFA carburetor which is single barrel, downdraft carburetor with triple venturi.

北京切诺基发动机采用卡特YFA单腔 、 下吸式、三重喉管化油器.

The temperature difference between oasis and surrounding desert drives an oasis breeze circulation, in which there is the downdraft over the oasis and the updraft over the desert.

这种温度差异使绿洲风环流产生，并且使绿洲区产生下沉运动、沙漠区产生上升运动。