Then structural support, insulation, conduits and plumbing are sandwiched between the two layers of pallets.

再用两个左右托盘的材料制作支撑结构、绝缘和隐蔽管道的夹层。

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Then structural support, insulation, conduits and plumbing are sandwiched between the two layers of pallets.

再用两个左右托盘的材料制作支撑结构、绝缘和隐蔽管道的夹层。

youdao