The low utilization efficiency has resulted from the adoption of some traditional Chinese irrigation methods.
利用效率低的原因是采用了中国一些传统的灌溉方式。
With low utilization efficiency, the energy consumption is extremely high during coal grinding process.
煤炭的研磨过程能耗高、能量利用率低。
Foreign literature and information resource, as an important part of literatures and information resources in our country, have a universal phenomenon of low utilization efficiency.
外文文献信息资源是我国文献信息资源的重要组成部分，然而，其利用率低是普遍存在的现象。
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