surface impurity

The surface of the nugget appears the feature of regeneration and clay in the honeycomb caves has the micrograined associated gold. The impurity composition of the gold compares with the mark elements ( Cr, Ag and Cu) in the gold ore.

该狗头金表面不但显示再生痕迹，而且蜂窝状洞穴中的粘土还有微细金相伴，其杂质组分与本区含金矿石的标型元素Cr、Ag、Cu相对应。

To get the surface of materials are ready to paint without any oil, dust and impurity.

对基材表面进行处理,使基材表面无油污 、 灰尘和其它杂质.粘接面必须充分接触.

Influence of Surface Impurity Profiles on Characteristics of Negative Resistance of Transistor

表面杂质浓度分布对晶体管负阻特性的影响

As the sintering temperature rising, the impurity phase is gradually disappeared and the crystallinity is increased; surface morphology will become more spherical; luminescent intensity and quantum efficiency are also effectively improved.

随着烧结温度的提高，YAG：Ce3+荧光粉的杂相含量降低、结晶性能提高；表面形貌逐步趋于圆球形；发光强度逐渐增强；量子效率有效提高。

A waste product or an impurity, especially an oxide, formed on the surface of molten metal.

一种轻质玻璃, 形成于一些熔岩的表面,用作研磨剂.

Searches in the impurity clues in the water-ice dominated plumes and surface ejecta are progressing.

科学家持续不断的研究这些由水冰主宰的羽状烟柱及表面喷发物,来寻找水存在的可能性.