| 1. | Harmful gases must be drawn out by centrifugal ventilator .
有害气体必须通过离心式通风装置排出。 |
| 2. | The harmful gas protection in taizishan tunnel
台子山隧道有害气体防治 |
| 3. | The factory discharges harmful gases into the atmosphere
那家工厂将有害气体排放到大气中。 |
| 4. | We should find some ways to prevent the harmful gas from spreading
我们应找到法子阻止有害气体的蔓延。 |
| 5. | Detection methods for harmful gas evolved from non - dangerous cargo in holds
船舱内非危险货物产生有害气体的检测方法 |
| 6. | Assessment of poisonous and harmful gas pollution in mining site of chengchao iron mine
程潮铁矿采矿作业场所有毒有害气体污染评价 |
| 7. | Low - nitrogen combustion technology , smokeless and odorless , without harmful gas
无二次污染低氮燃烧技术，无烟，无臭，无有害气体。 |
| 8. | Dampproof , dustproof and defending greasy dirt and harmful gas , sealing strong , acidproof alkali antidetonation
防潮、防尘、防油污及有害气体，密封性强、耐酸碱抗震。 |
| 9. | It allowed the earth to dissolve harmful gases , which had become part of the earth ' s atmosphere , into the oceans and seas
它使地球把曾经存在于大气层中的有害气体溶解在海洋里。 |
| 10. | The results show that the measure has reduced consuming energy and forming amount of the harmful gases
结果表明，乳化重油燃烧技术可起到节能降耗、改善环境及增加经济效益的作用。 |
