When land use patterns changed, changes in soil quality were embodied in content of organic matter, soil water holding and supplying capacity, soil structure and soil microbial characteristics.
在土地利用方式变化过程中，土壤质量变化体现在有机质含量、土壤供持水能力、土壤结构状况和土壤微生物特性的变化上。
Balance on financial affairs in the water works is one of the most important ensuring factors to achieve the aim of supplying water safely by quality and by quantity.
自来水公司的财务平衡是实现按质按量安全供水目标的重要保证因素之一。
According to the quality of twice supplying water, acceding to some MF 2 disinfector to disinfect, it will achieve the standard of drinking water.
根据二次供水的卫生质量，加入一定量的MF - 2消毒剂进行消毒可达到饮用水卫生标准。
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