The animal models were established by free weight dropping and knockingmethod, expressions of NGF in bony callus were determined by immunohistochemical assay.
应用自由坠落重物撞击法建立脑和脊髓损伤动物模型，免疫组织化学方法检测各组骨痂中ngf的表达。
2
I understand that it can be hurtful and annoying, but I always feel pity for people whose only method of building themselves up is by knocking others down.
据我所知，它可以伤害和愤怒，但我总觉得人们的自身建设的行动的唯一方法可惜的是，打掉心。
3
Preferred method for small pieces storage. Flexible, convenient to assembling and knocking down. Easy to adjust and relocate.