在介绍洋葱收获前处理、过程及方式的基础上，重点阐述了挖掘犁、收获机、捡拾机、联合收获机等洋葱收获机械的特点。
It emphatically discussed the characteristics of digging plow, digger, collecting machine and combine harvester, basing on onion pre-harvest treatments, harvesting procedure and measures.
就在上个月，还有人用推土机，在沙漠中犁出一个两英尺深的大裂缝，挖掘到一段楼梯的砖块和沥青碎片，这可能通向另一片墓地。
Just last month someone used a bulldozer and plowed a two-foot-deep gash in the desert, unearthing the brick and bitumen remains of a stairway possibly leading to another cemetery.
一年后，斯密特和五个同事又回到了这里，然后他们就找到了第一个巨石群，这个巨石群被埋在离地表很近的地方以至于在挖掘它们的时候犁得过深，伤到了它们的表面。
Schmidt returned a year later with five colleagues and they uncovered the first megaliths, a few buried so close to the surface they were scarred by plows.
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