... drop arch 垂拱,平圆拱 dry arch防潮基拱;不加装饰的拱 dumb arch 假拱 ...
双语例句
1
The Rapidly Emplaced Hydraulic Arch Barrier, made of the same material as the other two devices, can be put in place around a plugged breach to keep it sealed and dry once the plug has been removed.
Ultra light high strength, thermal insulation, waterproof, and the surface adhesion strong, activist and arch, not crack, dry shrinkage ratio as well as good.