?澍宸廴狈?蛋彼幔0蛋氨酸和亮氨酸.Cottonseed meal is deficient in lysine, methionine and leucine.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 valine, is pyruvate.饰胶蛋白聚糖(Decorin,D...
The planet is probably in orbit around a small star.这颗行星可能正环绕着一颗小恒星运行。Yet bigger satellites will be sent up into orbit.更为大型的卫星将被送入轨道。The orbit of this comet intersects the orbit of the Earth.这颗彗星的轨道与地球的轨道交叉。...