这个安全生产机构的副主任黄益(音译)说，由于严格的监管和制度，加上关闭了12 000个小煤窑，死亡率从2002年以来已经减少了四分之三。
Huang Yi, the deputy administrator of the work safety agency, said stricter scrutiny, regulations and the closing of 12, 000 mines had cut the death rate by three-fourths since 2002.
精益软件系统大会周三在亚特兰大举行。 会议邀请到了不同方面专家进行精彩的演讲和活动。
The Lean Software & Systems Conference kicked off Wednesday in Atlanta with a great diversity of exciting talks and activities.
氧气吗当然是多多益善，而三氧化二氮分子在破坏了一系列挥发性有机化合物中的一个分子后也很快就寿终正寝了。这种有机化合物是构成白天烟雾的另一种成分。
The oxygen will bother no one, and the nitrogen trioxide soon meets its end destroying one of a range of volatile organic compounds that are another constituent of daytime smog.
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