Non-coal underground mine is big and complex system, carry out safe appraisement must first the existent major dangerous, harmful factor in system argue one by one to know.
非煤地下矿山是个大而复杂的系统，进行安全评价必须首先对系统中存在的主要危险、有害因素逐个进行辩识。
Simple obesity is a dangerous factor in diabetes, hyperlipidemia, cerebrovascular and other diseases, which are harmful to the body.
单纯性肥胖症是糖尿病、高血脂及脑血管病等多种严重危害人体健康疾病的危险因子。
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