helper virus

• 辅助病毒

helper virus的用法和样例：

例句

1. However, the clinical application of the third-generation adenovirus vectors is hampered by the existance of helper contamination and difficulties in their large-scale production.
   然而，由于辅助病毒污染的存在及病毒产量有待提高，第三代腺病毒载体的临床应用仍面临一定困难。