比赛场地照明
lighting for competition area
泵吸反循环施工工艺
pumped reverse circulation workmanship
变掺量施工工艺
Construction Technique of Cement Addition Variation
长管棚施工工艺
long steel pipe construction technology
大型钢模壳施工工艺
Engineering techniques of large-scale steel fomwork
吊装施工工艺
hoisting construction craft