Obviously, the composition, structure and properties of the intermediate layer play an important role in some main properties of the sintered polycrystalline diamond.
显然，这种中间层的组分、结构和性质对于烧结多晶金刚石的某些主要性质有着重要作用。
2
The polycrystalline diamond (PCD) compact is composed of polycrystalline diamond layer and hard alloy layer.
PCD复合片由聚晶金刚石层和硬质合金层组成。
3
The polycrystalline silicon layer is formed on the oxide layer and used for serving as an upper electrode plate of the high-voltage capacitor.