Categorization norm for human factor accidents and accidental signs and their statistical method are the bases for guaranteeing civil aviation flying safety.
事故与事故征候分类标准和统计方法是民航飞行安全的一项基础性安全管理内容。
This paper has been derived general purpose formula for selection of factor of safety, from statistical nature of actual load and statistical nature of load cap-ability for farm machine.
本文根据农业机械承受的实际载荷及其承载能力的统计特性，导出了选用安全系数的一般通用公式。
This paper has been derived general purpose formula for selection of factor of safety, from statistical nature of actual load and statistical nature of load cap-ability for farm machine.
本文根据农业机械承受的实际载荷及其承载能力的统计特性，导出了选用安全系数的一般通用公式。
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