residual activity meaning in English
残留放射性
残留活性
残效
残余放射性
剩余放射性
Examples
- Organophosphates are broad - spectrum contact insecticides with relatively higher toxicity and longer residual activities
有机磷是广谱触杀性除害剂，毒性相对高，效力较持久。 - Its activity became declining when the temperature was above 70 and when the temperature is 90 , its residual activity is 38 . 4 %
4 ，在ph7对时dna酶的活性急剧下降， ph90时剩余活性为1而出 - There are also some specially formulated pyrethroid products with extended residual activity that can be applied as residual sprays
有些配方的产品具有较持久残留作用，可用作残留喷洒的方法去施放。 - These chemicals are broad - spectrum contact insecticides that provide rapid knockdown effects on insects but with only little residual activity
这些化学品是广谱触杀性除害剂，具快速触杀作用，但残留效力并不持久。 - 5 and was virtually inactive above ph 6 . 0 . when the enzyme was incubated at various ph values at 37 ? c for 30 min in the absence of substrate and the residual activity was measured , the phytase was found to be stable at the ph range of 2 to 8
该酶反应的最适ph值为5 . 5 ，在phz一6之间都有较高的酶活性， ph大于6时植酸酶的活性迅速下降，在phz一8之间的稳定性很好，活性> 70 % 。