想想前苏联那些地下百万富翁们，当时拥有私人财产并雇用别人来工作可是违法的。

Consider that there were underground millionaire entrepreneurs in the former Soviet Union when owning private property and employing people outside of the state system was a prison offense.

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在建造之前，画出并标出所有的财产边界和地下设备。

Prior to construction, delineate and mark all property boundaries and underground utilities.

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一般来说，地下煤炭开采从一个侧面(浸最开始)和结束在另一侧该财产。

Generally, underground coal mining starts from one side (dip most) and ends at the other side of the property.

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