开发人员必须表明他们希望实现“深度”拷贝，以便完整地保存对象及相关内容。
Developers must indicate they intentionally desire a "deep" copy in order to save the object, its relatives, and so on fully.
联合整地机的深送齿，用来代替犁，它使得土壤表层振松，深度打碎。
The cultivator shanks, instead of the plough, allow a decompaction, superficial and deep explosion of the soil.
联合整地机的深送齿，用来代替犁，它使得土壤表层振松，深度打碎。
The cultivator shanks, instead of the plough, allow a decompaction, superficial and deep explosion of the soil.
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