基础发病率基储病率basic: Basic = Basic English. incidence: n. 1.发生;影响;着落;(税的)负担;影响范围;发生 ...rate: vt.,vi. 〔方言〕=ret. incidence rate: 发病率; 发生率rate of incidence: 感染率; 入射率下载手机词典可随时随地查词查翻译