用生物水净化剂对投加无机肥和有机肥的养殖水体进行试验研究。
Experiment to test the effect of water clarifier-A on water quality in aquaculture ponds was done with two treatments.
这艘船运送了数百吨高能量饼干，面粉和水净化剂，以及足够30,000人使用一个月的药品。
It's delivering hundreds of tonnes of high-energy biscuits, flour and water purification tablets, as well as enough medicine to last 30, 000 people for a month.
这艘船只搭载了数百吨高能量饼干，面粉和水净化剂，以及足够30,000人维持一个月的药品。
It's delivering hundreds of tonnes of high-energy biscuits, flour and water purification tablets, as well as enough medicine to last 30,000 people for a month.
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