The high laevorotation of L - cystine depends on a specially helical structure of its molecular.指出了L - 胱氨酸高度的左旋性是由其分子的特殊螺旋结构决定的.L - Cysteine is a, neutral, genetically coded amino acid, derived from cystine and found in ...
the Firth of Clyde克莱德湾Waterfalls never fail to attract and those at the Falls of Clyde are no exception.瀑布向来都不乏吸引力，克莱德瀑布群也不例外。With this parting admonition, he left Clyde to his thoughts.这样临行前劝告了一番, 他就走了,留下克莱德自己想心事.The en...