The flat steel plate wall shall be strengthened by the vertical stiffeners and horizontal webs, and provided with walking platform with handrails.

平板围壁应该使用垂直扶强材和水平桁加强并且提供有扶手的步行平台。

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Surveillance video shows him walking slowly toward the platform's edge and then over it.

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This year, 3D Systems gave the company a run for its money, in the form of the portable Cube (which employees were carrying strapped to their chests while walking the show floor) and the CubeX, with its enormous basketball-sized build platform.

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