大多数禾本科胚有一片瓣 状 结构通常称为外胚叶.Most grass embryos have a flap - like structure known as the epiblast.目的: 研究少汗性外胚叶发育不全引起先天缺牙的ED1基因突变.Objective : To detect ED 1 gene mutation in three hypohidrotic ectodermal dysplasia ( HED ) nuc...
The plastic-covered seat has a few small splits around the corners.塑料面椅子的四角上有几道小裂缝。The river splits into three smaller streams at this point.这条河在此处分成三条小河.Usually only a trained dancer can do the splits.通常只有训练有素的舞蹈演员才会劈叉....
Signs across the entrances warn all visitors to stub out their cigarettes.入口处的告示牌提醒游客们熄灭香烟。The badger sett had twelve entrances to what must have been a labyrinth of tunnels.这个獾穴有12个入口,下面必定有一套错综复杂的地道.Horrified suspense e...
Elgar supplied his works with precise indications of tempo.埃尔加给自己的作品标上了精确的节奏标记。They waltz to the tempo of the music.他们跟着音乐的节奏跳华尔兹舞。The boss is unsatisfied with the tardy tempo.老板不满于这种缓慢的进度。In a new recording, the Boston ...