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- Each month during 1991 saw average ozone levels reach new highs. 1991年的每个月平均臭氧水平都达到新高。
- In 1994, scientists reported that, during 1993, Antarctic ozone levels had dropped to their lowest recorded level. 1994年,科学家又报告说,1993年南极臭氧层已经降到了它们最低的纪录水平。
- In 1994,scientists reported that,during 1993,Antarctic ozone levels had dropped to their lowest recorded level. 1994年,科学家又报告说,1993年南极臭氧层已经降到了它们最低的纪录水平。
- Peden also said that ozone levels are higher, which causes more asthma symptoms. 佩登还说臭氧水平更高了,这将引起更多的哮喘症状。
- TOMS has been the key instrument for monitoring ozone levels throughout the southern hemisphere since the discovery of the ozone hole in 1985. 自1985年发现臭氧空洞以来,TOMS一直都是监视南半球臭氧层的主要仪器。
- Ambient ozone levels should be monitored and equipment shutdown and alarm device should be incorporated into the system and operating automatically when levels exceed 0.1 Ppm. 臭氧消毒系统应能监察四周的臭氧水平;并设有关闭设备和警报器;于四周臭氧水平超过百万分之0.
- I'd like a room on the upper level. 我想要楼上的房间。
- We need a mechanical digger to level the ground. 我们需要一台挖掘机来平整土地。
- I hope you'll be on the level with me. 我希望你对我坦率布公。
- She needs to win this point to level the score. 她要赢得这一分才能将比分扳平。
- Keep a level head and phone the Fire Department. 保持冷静,打电话给消防署。
- A football field should be level. 足球场地应该平坦。
- The rising level of crime is a sign of the times. 犯罪率增高是这一时代的特徵。
- I have told the whole story on the level. 我已经诚实地把整个事情经过讲出来了。
- Find level ground for the picnic table. 找一处平坦的地面放野餐的餐桌。
- This mountain is 1,400 meters above sea level. 这座山海拔1,400米。
- He has a level head in emergencies. 他在危急关头能镇定自若。
- If the table top isn't level, things will roll off. 如果桌面不平,东西就会滚下来。
- The level of inflation has gone beyond 8%. 通货膨胀率已经超过了8%。
- Add one level (ie not heaped) tablespoon of sugar. 加一平餐匙糖。