... distribution factor of snow pressure 屋面积雪分布系数 dog spike 扒钉 double component concrete column 双肢柱 ...
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dog spike bar 道钉钢条
dog spike floating 道钉浮动
Dog-spike 道钉
spike dog spike 铁路上用于将路轨固定在轨枕上的类似的钉
common dog spike 普通钩头道钉
dog headed spike 狗头钉
cut-spike dog spike hooked spike 钩头道钉
spike dog 道钉
dog-head spike [铁路] 狗头道钉 ; 钩头道钉
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