water yield; the yield of water◇水量计[表] watermeter; 水量平衡 water balance; 水量收支 water budget抽水量 扬水量: amount of ground water pumping缺水量;水量差: water deficit; waterdeficit用水量;耗水量: water consumption保水量: moisture holding capacity; moisture-holding capacity; water retaining capacity变水量: vwv下载手机词典可随时随地查词查翻译