强酸位是对二乙苯和乙苯裂化的活性中心，而对歧化和异构化反应生成对位异构体的选择性影响不大。
The strong acid is the active site for creaking para-diethylbenzene and ethylbenzene and it has little effect on p-isomer selectivity of disproportionation and isomerization.
结论雌激素补充治疗能选择性影响基底前脑各亚区NOS和胆碱能神经元，并有可能影响学习和记忆能力。
Conclusion estrogen replacement can selective effect on the different basal forebrains subregion NOS and cholinergic neurons, and may concern ability of learning and memory.
这项技术使研究人员能够创造出选择性忽略某些营养成分的溶液，然后观察其对植物的影响。
This technique allows researchers to create solutions that selectively omit certain nutrients and then observe the resulting effects on the plants.
应用推荐