valley jack rafter detail的意思|示意
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山谷千斤顶椽细节
valley jack rafter detail的网络常见释义
斜构椽子 English translation for "椽子" ... 出头椽子: exposed rafters detail>> 斜构椽子: valley jack rafter detail>> 出头椽子先烂: exposed rafters are the first to rot.;... detail>> ...