PAHO and US CDC experts are working together on improved surveillance and reporting of cases, analysis of water samples from rivers and other water sources, and monitoring of antibiotic resistance.
泛美卫生组织和美国疾病预防控制中心的专家共同致力于改进病例监测和报告，分析从河流和其他水源得到的水样，并监测抗生素耐药性。
It also found strong environmental benefits such as improved soil fertility, better retention of water and resistance to drought.
研究还发现，有机农业还能带来极大的环境效益，比如提高土壤的肥力、更好地保持水土、防止干旱。
The gloss, hardness and water-resistance of the latex coatings can be improved by incorporating the hydrosols.
添加该水溶胶可改善氨基丙烯酸乳胶漆的光泽、耐水性和硬度。
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