两层细胞 ( 两胚层 ),中间是凝胶状的中胶层.Two cell layers ( diploblastic ) separated by a gelatinous mesoglea.天边是耀眼的橙红色曙光, 下面点缀着一条凝胶状的淡绿色带子.Dawn came glassy orange , stained from below by a gelatinous band of pale green....
Chlorophyll is produced by the action of light on the plants'leaves.光对植物的叶子发生作用从而产生叶绿素.The disease causes varying degrees of destruction of the chlorophyll.这一病害使叶绿素遭到不同程度的破坏.The structure of the chlorophyll molecule...
The crown gall disease is a bacterial disease induced by Agrobacterium tumefaciens.根癌病是由根癌农杆菌引起的细菌性病害.The dominant bacteria were Photobacterium , Vibrios, Aeromonas, Enterobacteriaceae, Xanthomonas, Agrobacterium, Bacill...
While the lads are golfing, I work out in the gym.小伙子们打高尔夫球的时候，我在健身房锻炼。He was wearing a cream silk shirt and a tartan golfing cap.他身着一件米色丝绸衬衫，头戴一顶花格子高尔夫球帽。You can play tennis or go golfing.你可以打网球或高尔夫球。...