污染

Diesel engines have the advantages of high thermal efficiency, maximum torque output, better fuel economic, and stability. In addition the diesel engine has an important contribution in dynamic machine, such as big truck, bus, trailer, attachment car, train, ship, agrimotor etc. It is excellent contributions to develop world economy, and then emissive smoke and NOx will produce air pollution to damage human health.

柴油引擎具有热效率高、输出扭力大及油耗较省、稳定又耐用等诸多优点，因此在动力机械方面始终扮演著重要的角色，如大货车、大客车、联结车、火车、船舶、农业机械等之引擎均采用之，对於全球经济发展功不可没；然而排放的黑烟和氮氧化物的浓度造成空气污染，影响人类健康，长期吸入会导致呼吸系统疾病，甚或致癌。

The local fire department alerted him that the home of a student at Agua Fria High School was contaminated with liquid mercury that apparently had been taken from a science classroom.

当地消防局告知 Matthew ，其学校一位学生的住宅已遭到液态汞的污染，现在看来这些汞是被从实验室上私自带出的。

On high air pollution alert days, what sort of outdoor events

在「高度空气污染」日子，哪些由私人机构举办的户外活动应被

Welcome to Clean Air Network's Pollution Alert Service.

欢迎浏览「健康空气行动-空气污染电邮警示服务」。

The committee decided that measures should be taken immediately to reduce air pollution near that petrochemical base.

委员会决定应该立即采取措施减少那个石油化工基地附近的空气污染现象。

By providing chambers on both top and bottom of the bed, contaminated air is forced through the bed from the top down.

通过在顶部和底部提供燃烧舱，受污染的空气被强行自上而下通过碳床。

It is a wide-ranging drying means to heat air in the hot blast furnace indirectly.

但是，目前使用的各种不同形式的热风炉普遍存在污染环境和热效率低的缺点。

I think the biggest environment problem in China is air pollution.

我觉得中国最大的环境问题是空气污染。

The air in China's major cities is thick with pollution.

中国的大城市空气污染严重。

" Air Pollution Index " column is added on the main page.

主页新增"空气污染指数"一栏。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。