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The results showed:At gastrula stage, the cells in front of the embryonic area graduslly cleave to form optic disc rudiment. 前蚤状幼体晚期，复眼色素区扩大到复眼直径的一半。复眼由个眼构成，每个个眼由角膜、角膜生成细胞、晶锥、小网膜细胞等组成。
The subcultural 4-10 generational cells as donors were transferred into unfertilized eggs with nuclei from common carp and golden carp as receptors, finally, the embryo developed to gastrula stage. 采用继代培养到第4-10代的鲤鱼体细胞为供体，鲤鱼和金鱼未受精具核卵为受体，进行移核试验，最终获得发育至原肠期的胚胎。这是鲤鱼体细胞核移植的首次报道。
SCREENING OF DIFFERENTIALLY EXPRESSED GENES AT GASTRULA STAGE DURING EMBRYOGENESIS OF CARASSIUS AURATUS GIBELIO 银鲫原肠胚差异表达基因的筛选
There are many spotlights on the stage. 舞台上有很多聚光灯。
Please dim out the stage for the final scene. 请在最后一场即将开演时使舞台灯光转暗。
The singer was led off the stage by the maestro. 歌唱家由那位著名的指挥领着离开了舞台。
I always get the jitters before I go on stage. 我登台之前总是感到紧张。
She did the first stage of the trip by train. 她行程的第一段是乘火车的。
She's wanted to go on the stage from an early age. 她从小就想当演员。
The singer got the bird when she came out on stage. 这位歌手一出现在舞台上人们便以嘘声嘲弄她。
The disease is still in its primary stage. 这疾病仍然在初发阶段。
Negotiations were at a crucial stage. 谈判正处于一个关键的阶段。
The technique is still at the experimental stage. 这项技术正处于实验阶段。
The process of forming a gastrula. 形成原胚肠的过程
The actors were booed off the stage. 演员被倒彩声轰下了台。
The reform is at its critical stage now. 改革正处于关键阶段。
The last few minutes before going on stage scow new actors up. 上台前的最后几分钟常常使新演员很紧张。
A lot of electric lamps illumined the stage. 舞台由许多电灯照亮。
He quitted the stage of politics. 他退出了政治舞台。
She stood alone on the enormous stage. 她孤零零地站在巨大的舞台上。