哨点流感样病例
Sentinel influenza-like illness
少数载流子注入
Minority carrier injection
少数载流子有效寿命
effective lifetime of minority carrier
少数载流子寿命下降
Reduction of minority carrier lifetime
少数载流子寿命
Lifetime of Minority Carrier
minority carrier lifetime
Minority carrer lifetime
少数载流子浓度
minority carrier concentration
少槽永磁直流电动机
few slots permanent magnet DC motor