常见例句双语例句Due to the optimum weight-strength ratio and corrosion resistance, as well as easy replacement, the FRP profiles are used for bridge-deck.因为拉挤 玻璃钢 型 材具有最佳的重量-强度比和耐腐蚀性能，而且更换容易，经常被使用作为桥梁的路面盖板。 返回 bridge ratio resistance