Objective To investigate whether alpha-thalassemia can be diagnosed with extraembryonic coelomic cells.

目的探讨胚外体腔穿刺术应用于α地中海贫血产前诊断的可行性。

The obturated haemocoel was enclosed by the continuous and stratified basement membrane under the coelothelium and endothelial.

体腔上皮和内皮下连续成层的基膜围成呼吸树中封闭的血腔。

By inserting a tube into the melted iron to form a greybody tube and to make the emissivity steady.The temperature of the melted iron can be obtained using a optical fiber thermometer.

其中一种途即利用一个空芯导管插入铁水中,形成一个近似灰体腔,使腔内铁水表面发射率基本不变,然后利用光纤比色测温仪示出温度。