... joist ceiling搁栅平顶 joist steel梁钢 joist shears型钢剪切机,钢梁剪切...
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... jointless structure 无接缝结构 joist ceiling 搁栅顶棚 joist 搁栅；托梁 ...
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ceiling joist [建] 平顶搁栅 ; 吊顶龙骨 ; 吊顶木龙骨
main joist of suspended ceiling 吊顶主龙骨
joist t ceiling 搁栅顶棚
new ceiling joist 新建天花搁栅
ceiling joist detail 吊顶龙骨
inclined ceiling joist 峻脚椽
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Poles can be held in place by using threading to brace them against a ceiling joist.
钢柱可以用一个支架固定在一个有天花板的地方。
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