The coal it produces is mostly poor in quality and rich in ash; it should be washed before shipping to make it more efficient, but is not.

它所产的煤炭大部分质量差而灰尘多；要想提高这些煤炭的效率，在装运之前应该要清洗但它们并没有被清洗过。

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Conclusion After ovariectomy, the absorption of bone prevails over osteogenesis, the osteoporotic changes occur, and the fracture healing is poor in quality.

结论去势后骨吸收大于骨形成，出现疏松化表现，骨折的愈合质量差。

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The conference centered on three main problems to getting and keeping girls in school: violence,poverty and poor quality education.

VOA: special.2010.05.20

Corn harvests remain small. The researchers say farming methods in Sub-Saharan Africa need to improve or else poor quality soil will increase rural poverty.

VOA: special.2009.07.28

At the week-long conference, participants are focusing on three primary roadblocks to getting and keeping girls in school: violence,poverty and the poor quality of education being offered.

VOA: standard.2010.05.19

The All Blacks next play England, who saw off Argentina 16-9 at Twickenham in a poor quality match in difficult conditions.

CNN: All Blacks battle past Italy in San Siro

This immunity from the slings-and-arrows of poor power quality in the residential sector is unlikely to last long.

FORBES: Perfect Power: Clean Energy's Killer App

Pollution from road traffic, particularly diesel fumes, is the most significant cause of poor air quality in most cities.

BBC: Court reserves UK air quality ruling