complex infection

• 复合感染

complex infection的用法和样例：

例句

1. The disease was caused by the mixed infection of Fusarium solani and plant nematodes.
   该病的发生是由于腐皮镰刀菌与植物线虫复合感染所致。
2. Three major symptom types, i.e. symptomless virus infection, irregular yellow spot and severe yellow mosaic were evidenced in the field.
   以电显观察茉莉花病叶粗汁液，发现其内至少含有三种长度不一丝状粒子的病毒病原，乃一复合感染之病害。