这标志着卵裂发育阶段的结束.This marks the end of the cleavage stage of development.受精卵发育成桑椹胚的过程叫卵裂.The growth a zygote a morula is called fragmentation.在早期卵裂中, γ微管蛋白聚集在胚胎的细胞核周围.During early cleavage, � � - tubulin distributes around ...
How do we prevent these continual breakdowns?我们如何防止这些一再出现的故障?...breakdowns in communications and electric power grids.通信系统与输电网的中断Her old car was unreliable, so the trip was plagued by breakdowns.她的旧车老不听使唤，一路上总是出故障。Her ol...