spills would also be a health risk, since carbon dioxide is heavier than air, and so can build up in low-lying or poorly ventilated spots.
二氧化碳泄漏会带来健康风险。由于二氧化碳比空气重,因此可以在低洼地区和通风差的地区累积。
in poorly ventilated dwellings, indoor smoke can be 100 times higher than acceptable levels for small particles.
在通风不良的住所,室内烟雾会比可接受的微小颗粒水平高出100倍。
home and office windows should be opened during good weather to allow a flushing of stale air. even one「s car needs to be ventilated as well as the garage.
天气好的时候,家里和办公室的窗户应该打开,让污浊的空气能流通出去,即使是车子和车库也需要通风。
in poorly ventilated dwellings, indoor smoke can exceed acceptable levels for small particles in outdoor air 100-fold.
在通风不良的住所,室内烟雾可超过可接受的微小颗粒含量,比室外空气高100倍。
wintek said n-hexane was commonly used in the technology industry, and that problems had arisen because some areas of the factory were not ventilated properly.
胜华还称,正己烷在科技行业中被广泛使用。而事件的发生是由于工厂的部分区域并没有按规定做好通风工作。
aside from belching tons of black carbon into the atmosphere daily, cooking smoke produced in poorly ventilated areas is estimated to shorten the lives of 1.9 million people annually.
emergency facilities need to be progressively improved or replaced with simple pit latrines, ventilated improved pit latrines, or poor-flush latrines as the situation develops.
应急设施必须随着情况改善予以逐步改进或以简易坑式厕所、通风改良坑式厕所或节水型水沖式厕所予以替代。
have your heating system serviced professionally to make sure that it is clean, working properly and ventilated to the outside.
为你家的供暖系统寻找专业的服务,用来确保它清洁干凈、运行正常、通风良好。
when it」s too hot in an improperly ventilated room, the air becomes dry, and so do our eyes.
太热的话而通风也不好的情况下,房间的空气会变得很干燥,因此,你的眼睛也会变得很干。
how can you expect to control it when patients are sent home from hospital to sleep in a crowded, poorly ventilated room with 10 other people?