Tobacco use, indoor and outdoor air pollution and occupational dusts and chemicals are the primary risk factors.
烟草使用、室内外空气污染与职业灰尘和化学品是主要的高危因素。
In my experience, there is a primary risk that drives project managers to consider overlapping iterations: the resource utilization risk.
在我的经历中，遇到过一个主要的驱使项目经理考虑重叠迭代的风险：资源利用风险。
Tobacco use and the burning of solid fuels for indoor heating and cooking are the primary risk factors for chronic obstructive pulmonary disease (COPD) – a lung ailment – in women.
慢性阻塞性肺病：烟草使用以及用于室内取暖和做饭的固体燃料燃烧是使妇女罹患慢性阻塞性肺病（一种肺部疾病）的主要风险因素。
Whether the posture is affected or not, the primary risk of osteoporosis is spinal fracture.
不管姿势是否发生改变，骨质疏松症最主要的风险是脊柱骨折。
The primary risk of any standard is that the product that follows it is only as good as the standard itself.
主要风险在于根据标准创建的产品不可能比标准更好。
Then after detailed analysis of the primary risk in the modern TPL companies, this paper established the index system.
然后详细分析了现代第三方物流企业存在的主要风险，构建了评价指标体系；
Conclusion Blood transfusion was the primary risk factor for HCV infection in HD patients, but iatrogenic transmission of HCV through HD environment could also exist.
结论血透患者感染HCV的主要原因为输血，同时在血透环境中亦可能存在HCV感染的医源性传播途径。
Conclusion Blood transfusion was the primary risk factor for HCV infection in HD patients, but iatrogenic transmission of HCV through HD environment could also exist.
结论血透患者感染HCV的主要原因为输血，同时在血透环境中亦可能存在HCV感染的医源性传播途径。
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