Amniocentesis is the removal of fluid from the amniotic sac.羊膜穿刺术是从羊膜囊抽取羊水的技术.The heart sounds are muffled when the pericardial sac is distended with fluid.当心包充满液体时心音减弱.Starch grains present in the embryo sac and placent...
The chalazal megaspore of a linear tetrad develops into a polygonum type sac.四分体线行排列,合点端的大孢子发育为蓼型胚囊.The heart sounds are muffled when the pericardial sac is distended with fluid.当心包充满液体时心音减弱.With embryo sac haustoriumcha...
You had your good angels escorting you. That's all I can say.你们有你们的善良天使保佑. 我只能这样说.These are guards from Azkaban and NOT Dementors escorting of Prisoners.这些阿兹卡班的守卫不是摄魂怪而是巫师——他们负责看守和审问犯人.Though there were guards escor...