莫加关键词检索结果

上游引道墙合同在 Chickamauga 水闸安装了大体积混凝土梁,实现了工程精度的壮举

In feat of engineering precision, massive concrete beams placed at Chickamauga Lock as Upstream Approach Wall Contract reaches major milestone

工作人员在田纳西州奇克莫加船闸更换项目的新上游引道墙安装第一根重达 420 吨的混凝土梁。