一道篱笆标明了那块田地的周界。

A fence marked the perimeter of the field.

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包括货币、长度、时间、重量、周界、面积、体积和速度。

Including: money, length, time, weight, perimeter, area, volume and speed.

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承重预制墙是装备式房屋的主要构件，它是在周界用一个框架加固的一块矩形薄板。

The load-supporting wall is the main construction element of the prefabricated building now in vogue.

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承重预制墙是装备式房屋的主要构件，它是在周界用一个框架加固的一块矩形薄板。

The load-supporting wall is the main construction element of the prefabricated building now in vogue.

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