The fertilizer and the seeds are directly spread in a ploughed earth ditch, and are not easy to blow away by wind.

给料组件安装在铧犁机架上，不需另加驱动力，可以节省一个劳动力，而且化肥或种籽直接施于犁过的土沟内，不易被风吹走。

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For open spread foundation, the pit is excavated by excavators for earth work with manpower to trim the side slope and build the ditch on top of base pit.

明挖扩大基础基坑开挖时，土方采用挖掘机开挖，并由人工配合进行边坡修理、基坑顶面排水沟的修建等辅助工作。

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