beam being and girder construction的意思|示意
美 / /
英 / /
梁的存在和梁的构造
beam being and girder construction的网络常见释义
治梁梁格结构 ... beam being anchorage 梁端锚固 beam being and girder construction 治梁梁格结构 beam being and girder framing 治梁梁格结构 ...