常見例句雙語例句Its roof structure adopts double-layered steel grids structure of barrel vault.該館屋蓋採用雙層筒形鋼網(wǎng)殼結(jié)搆,屋麪爲(wèi)彩色夾芯板和侷部採光玻璃。 返回 barrel-vault roof