南京溧水经济开发区是江苏省首批设立的省级开发区之一。
Nanjing Lishui Economic Development Zone is among the first group of Zones that were approved by Jiangsu Province as the provincial-level one.
但普通油井水泥由于其性能特点，影响了堵水经济效益的进一步提高。
But the performance characteristics of common cement have influence on the further improving economic benefit of oil well water shutoff.
鲤鱼是我国重要的淡水经济鱼类，广泛分布于中国各大水系中，且品种繁多。
Common carp (Cyprinus carpio L.) is an important economic species of freshwater fish, widely distributed in China.
沙塘鳢属鱼类为东亚特有的小型淡水经济鱼类，中国产沙塘鳢属鱼类分类问题长期存在争议。
The Odontobutis are valuable small freshwater fishes restricted to the East Asia, but their specific validities and phylogeny has been controversial for a long time.
通过田间实验，研究亚铵法制浆中段水经土地处理的同时作为灌溉用水的农田养分平衡状况及经济效益。
A field experiment was conducted to study the nutrient balance and economic benefit on winter-wheat and rice system with mid-stage effluent of ammonium sulfite method irrigation.
通过田间实验，研究亚铵法制浆中段水经土地处理的同时作为灌溉用水的农田养分平衡状况及经济效益。
A field experiment was conducted to study the nutrient balance and economic benefit on winter-wheat and rice system with mid-stage effluent of ammonium sulfite method irrigation.
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