roof sheathing 中文意思是什麼
roof sheathing
解釋
承梁板-
Standard practice for calculating bending strength design adjustment factors for fire - retardant - treated plywood roof sheathing
火焰阻滯劑處理的膠合板屋頂蓋板計算彎曲強度設計調節因素的標準操作規程 -
Standard test method for performance of wood and wood - based floor and roof sheathing under concentrated static and impact loads
在集中靜載荷和沖擊載荷下木製及木基樓板和屋頂覆蓋層性能的標準試驗方法
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