多變量遞增故障率分布 increasing failure rate: 單調(diào)增加故障率; 遞增失效率failure rate distribution: 故障率分布linear failure rate distribution: 線性失誤率分布multivariate distribution: 多變量分布; 多維變量分析; 多元分布multivariate t distribution: 多元下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯