catchment

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• catchment
• catchment-specific意思是什么?
• 麻烦翻译这段英语The total amount of water that is received in the form of rainfall over an area is called the rainwater endowment of that area.The actual amount of rainwater that can be effectively harvestedfrom the rainwater endowment is called the rainwater harvestingpotential.18 Rainwater yields vary with the size and texture ofthe catchment area. A maximum of 90 percent of a rainfall canbe effectively captured through rooftop rainwater harvesting.The qual
• a catchment-based ecosystem approach
• 英语翻译she and Jez won’t accept their invites to stupid drinks parties in their double-fronted Edwardian houses in The Driveway,the only road apart from ours with a guaranteed catchment into this tiny,one-form-entry infant school.
• 1÷5％＝?200×20％＝?40÷50％＝?
• 圆周率第20位是?