螺旋体和其他滑动的生物能在琼脂表面或里面滑行.Spirochetes and organisms that show gliding movement can move over or through an agar gel.梅毒: 由苍白密螺旋体(Treponemapallidum)引起引起的一种性传染病.Syphilis: Sexually transmitted disease caused by the spirochete T...
He doesnot half waste money.他很浪费钱财.Kevin decides to give an eyean eye and doesnot return jack's books.凯文决定以其人之道还治其人之身,不将书还给杰克.Your president doesnot try to hide his British sympathies.贵国总统同情英国,对此他并不刻意加以掩饰....
Through nitrosation , hydrogenate reducion, and acylate three steps, the yield surpass 80 % for the diethyl malonate.收率相对于丙二酸二乙酯达到了80%以上.The necessary material of 2 - ( 2 - methoethyl ) acetaldehyde diethyl acetal was sy...