protective covering frame
5. protective covering frame: channel steel as post, adjustable bearing carrier and paper carrier.
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protective covering frame
防护罩架
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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A protective rooflike covering, often of canvas, mounted on a frame over a walkway or door.
一个保护性的屋顶状遮蔽物，常用帆布制成，置于一个走廊或门的架上。
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