心皮是由大孢子叶两边愈合进化而来的.It has evolved by fusion of the two edges of the megasporophyll.孢子异型:指植物产生两种大小不同的孢子: 小孢子和大孢子.Heterospory The production of two different sizes of spore: microspores and megaspores.通常较大的大孢子含有更多的贮藏养料.The ...
One of the most unexpected surprises was my encounter with a race of arachnid creatures.最意想不到的发现之一是我与一族蜘蛛类生物的相遇。I want that wall - crawling arachnid prosecuted!我要起诉那个在墙上爬的八脚怪物!Lifting the tiny arachnid, he transported it...
Site - specific infrared dichroism enables orientational analysis of TM α - helices bundles in aligned bilayers.位点特异的红外二色性分析可使得在脂双层中定向分析跨膜α螺旋束成为可能.In the corridor were four dirty, ragged bundles, just identifiable as hum...
他获得了“原子可以再分”这一概念的专利权。He patented the idea that the atom could be split.这些生理小种还可以进一步再分.The races can be further subdivided.很多年前, 人们曾认为原子不能再分了.Many years ago, people thought that atoms could not be divided any further....