生态种发生  ecogenesis

突发生态环境问题  Eco-environmental emergency

生态发生  ecogenesis

各基因发生突变之频度分布  mutation spectrum

公共卫生突发事件  Sudden affairs of public health; public health emergency; emergent public health event; Emergency in public health event

核化生突发事件  NBC accident; Nuclear; chemical and biological emergency events

突变生态种  a-ecospecies; abrupt ecospecies

突发发射  burst transmit

突发发射和接收  burst mode transmission and reception

突发发送  burst transmission

学生突发事件  students’ unexpected Incident

表皮形态发生素  epimorphin

病毒形态发生  virus morphogenesis

城市生态发展水平  Ecological status of city

促卵受精膜形态发生素  oocytin

发生/发作  occurrence

发生发育  occurrence and development; Initiation and development; origin and development; The genesis and development

发生发展  tumorigenesis and development; occurrence and development

发生发展规律  occurrence dynamics and development