研究人员还表示,在佩特里培养皿中的脑细胞前体可以发育成神经元.The researchers also showed that the progenitors mature into neurons in Petri dishes.植树细胞中丙氨酸和亮氨酸 、 缬氨酸的主要前体是丙酮酸.In plant cells the principal precursor of alanine , as well as leucine and v...
ABB motor, air - operated polishing system for steadier feed and brighter polish.配置ABB磨头电机, 采用气动补偿抛光装置,传动平稳,抛光亮度高.There are much brighter prospects for a comprehensive settlement than before.综合性的社区具有比以前更加光明的前景。He suddenl...