土地经济效果处于中低等级的地方主要依赖于土地开发和土地相对集约利用，土地产出水平低。
Those places where land economic effect in middle and low degrees mainly depend on land exploitation and their land relatively intensive use and land output is low.
用该方法研制开发的普通酸压、前置液酸压、泡沫酸酸压等设计软件已广泛用于现场酸压施工设计，取得了显著的技术经济效果。
A generally applicable calculation method of design of various types of acid facturing technology is set forth. In the light of this method, softwares for design of common acid fracturing, preflush …
用该方法研制开发的普通酸压、前置液酸压、泡沫酸酸压等设计软件已广泛用于现场酸压施工设计，取得了显著的技术经济效果。
A generally applicable calculation method of design of various types of acid facturing technology is set forth. In the light of this method, softwares for design of common acid fracturing, preflush …
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