“母体”怎么读？

镭在离它的原始母体一定距离上固定下来.Radium can be fixed some distance from its original source.我们的祖国是我们大家的母体.Our motherland is the parent body of us all.不产生可育花粉的品种被用作母体.Varieties that do not produce fertile pollen are used as females....

“母体”的英语可以翻译为：matrix，[计] parent population ...