开发利用途径 development and utilization ways
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城市;雨水资源;收集方式;利用途径。
油菜杂种优势利用途径主要有三系法和两系法。
系统地阐述了山东省的煤炭资源、煤质特征及其主要利用途径。
Coal resources, characters and utilization route of Shandong Province were discussed in this paper.
The only way that we knew how to grow it reliably was to grow it in its natural host: cows.
那目前我们所知道的唯一途径就是,利用它的自然宿主,奶牛
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