D type boiler is widely used in petrochemical industry because of its characters of compact construction, less area occupied, short site installed period, easy operating and maintenance.
型锅炉以其结构紧凑，占地小，安装周期短，运行维护方便等特点，在国内石油化工系统得到了广泛的应用。
On the distribution of geological hazards within the construction site, type and basic features.
对建设场地内地质灾害分布、类型及基本特征。
Geological hazards estimation for a construction site is a type of positive measures to prevent or reduce geological hazards to the future engineering constructions.
建设用地地质灾害危险性评估，是有效预防、减轻或避免地质灾害对未来工程设施及其运行环境直接危害和间接危害的一项主动防灾措施。
Geological hazards estimation for a construction site is a type of positive measures to prevent or reduce geological hazards to the future engineering constructions.
建设用地地质灾害危险性评估，是有效预防、减轻或避免地质灾害对未来工程设施及其运行环境直接危害和间接危害的一项主动防灾措施。
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