化学清理在国外的主要进展是，开发出了一些新型化学清理剂以及对渣泥和废水的处理技术。

Some new chemical cleaner and treatment technology for slag-mud and waste-water have been developed for chemical cleaning at abroad.

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消防队员在清理了天线附近的树枝并喷洒阻燃剂之后撤离了山顶，因为继续留守过于危险。

Firefighters were pulled from the top of the mountain after clearing brush and spraying retardant on antennas because it was too dangerous for them to remain.

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柴油还含有优质的清洁剂便于发动机内部的清理，这就转化成了发动机的低油耗以及良好的行车里程优势。

Diesel oils also have superior detergents to keep the engine's innards clean. That translates into lower oil consumption as well as better mileage.

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