基本换效率基本失效率basic: Basic = Basic English. failure: n. 1.失败 (opp. success); 不及格。 ...rate: vt.,vi. 〔方言〕=ret. failure rate: mtbf; 故障率失效率; 平均故障率; 破损率; 事故率rate of failure: 失败率下载手机词典可随时随地查词查翻译