| 1. | Host resistance and fungal virulence parallel each other in the cross .
寄生的抗病性的病原菌的毒力在杂交中是势均力敌的。 |
| 2. | Toxicity was reduced when nicotiana trichome exudates were removed by various washing methods .
当通过不同洗涤方法除去烟草属毛状体的分泌物时，毒力降低。 |
| 3. | Many microorganisms synthesize and excrete compounds which are selectively toxic to other microorganisms .
许多微生物能合成并分泌一些对其它微生物具选择性毒力的化合物。 |
| 4. | This will vary with the local or total number of virus sources, but also with the efficiency as a vector of the prevalent aphid clones .
带毒蚜的多少因地区或因毒源总数而异，但也与优势蚜群传毒力有关。 |
| 5. | The higher potency strains belong to gene types 1 and 2
高毒力菌株属于基因类型1和2 。 |
| 6. | Chickens at 4 weeks of age were the most sensitive
结果表明，这些野毒株的毒力差异甚大。 |
| 7. | Virulence factor of the streptococcus suis type
2型猪链球菌毒力因子 |
| 8. | Clinical epidemiological investigation on
毒力岛的临床流行病学调查 |
| 9. | Toxicity determination of paralytic shellfish poison of vassarius sp
织纹螺麻痹性贝类毒素毒力测定 |
| 10. | Toxicity comparison on a few acaricides to three species spider mites
几种杀螨剂对3种叶螨的毒力比较 |
