夹层处的平台、楼梯和走道漂浮在神秘的黑色笼子里，车辆与人在其间穿行。
Mezzanine platforms, stairs, and walkways float amidst the mysterious black cages, such that cars and people are constantly circulating about.
在排挤走道或平台上，都应当装挡脚板，以防所用的工具、配件或材料滑下往。
Toeboards should be installed whenever tools, machine parts, materials or supplies are to be used or stored on a walkway or platform.
沿着走道进入一个室外平台，飞机失事地点和周围山丘尽收眼底。
Visitors are led through the exhibits to an outdoor platform that offers a commanding view of the crash site and surrounding hills.
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