因为鸟类羽毛和爬行动物的鳞片都包含黑素体——这是一种微小的囊状结构,其中包含了各种各样的黑色素,于是很多古生物学家开始怀疑恐龙羽毛是否也含有黑素体。
Bird feathers and reptile scales contain melanosomes-tiny sacs holding varieties of the pigment melanin. Many paleontologists suspected that dinosaur feathers also contained melanosomes.
瓶状叶,瓶状体瓶状部分,如囊叶植物的叶子。
如果前囊或后囊破裂,囊收缩产生的力量可以导致放射状撕裂的扩展,进而引起植入晶状体的后脱位。
If either the posterior or anterior capsules are disrupted, the forces created by capsular contraction may cause extension of radial tears, with subsequent posterior dislocation of the implant.
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