The boron abundace that control graphite carbon source powder anticipate is a transparent key question with boron diamondcomposition.
控制石墨炭源材料的硼含量是透明含硼金刚石合成的关键问题。
2
For example, in Figure 3 the solid diamond indicates that the relationship is a composition — in other words, that instances of the address class can only exist within the context of a person class.