2) Virus-free apple tree
苹果无病毒树
3) disease-free mother stock
无病母本原种
4) motif of unexpected curative properties of snake venom
蛇毒无意中疗病母题
1.
In the novels of the Ming and Qing dynasties,the motif of unexpected curative properties of snake venom can promote relationship between husband and wife,mother-in-law and daughter-in-law,or lead to marriage.
明清小说中蛇毒无意中疗病母题可促进夫妻、婆媳关系改善及男女关系缔结。
5) avirulent virus
无毒病毒
6) fruit tree virus
果树病毒
1.
The paper briefly introduces the harm of fruit tree virus to production, summarizes the progress of study on technology of fruit tree virus elimination and virus detection, discusses the relationship between virus detection and virus elimination and makes commentary on the technology.
果树病毒的扩散性很强 ,严重威胁果树的生长发育和果业生产。
补充资料：母本
1.植物繁殖过程中亲代的雌性植株。也叫母株。参见"亲代"。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条