statistical nature短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 计统计特征；统计属性 This paper has been derived general purpose formula for selection of factor of safety, from statistical/span> 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。 cnki