The overall aerobic quantity cam completely reflect the pollution degree of reducing matter in water.

需氧量 能完全反映水中还原性物质的污染程度。

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During its long descent, this organic matter may be eaten, excreted, and decomposed, drastically reducing its nutritive value.

在下降的过程中，这些有机物质可能会被吃掉、排出和分解，这样一来其营养价值就大大的降低了。

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By reducing particulate matter (PM10) pollution from 70 to 20 micrograms per cubic metre, we can cut air quality related deaths by around 15%.

将可吸入颗粒物(PM 10)从每立方米70微克减少到20微克，则与空气质量有关的死亡就可减少大约15%。

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The Danish minister, who accused Britain of being the worst offender on this matter, said reducing emissions to background levels was not acceptable since emissions of hazardous chemicals were already being reduced to zero.

BBC: News | UK | Sellafield to stay open - Prescott

Lord Lloyd-Webber is also proud of Boyzone's success - but still fuming at the way record company Polydor deleted No Matter What from the charts by reducing its price.

BBC: News | Entertainment | Boy power rules Planet Pop

Their ability to hold firm reinforced the principles of delivering early and often, reducing waste, and sticking to the deadline no matter what.

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