The wall is built of alternating sections of stone and earth, with some sections reaching a height of up to 4 meters.
这堵城墙是用石头和泥土交替建造而成，有些路段达到了4米的高度。
In traditional electric fence systems, the high voltage wires are interleaved with earth wires up to the height of the fence line, which means that every second wire provides no deterrent.
传统电围栏系统中高压电线被交叉的地球电线达在这意味着每个第二线提供不阻的篱笆行的高度。
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