according to the geography climate in shandong province, an engineering construction standard 「design regulation for durability of concrete structures」 is compiled in shandong province.
针对山东省的地理气候及环境特点,编制了工程建设标準《混凝土结构耐久性设计规程》。
the system of engineering construction standard has become bottleneck of the development of construction industry in china.