radiolarite

Experimental results showed that double coats of carbon and gold on the conductive coating of radiolarite should be used.

通过多次试验，认为放化石的表面导电处理应采用碳-金双层镀法。

In this paper the sample preparation techniques of radiolarite were discussed in order to get high quality secondary electron images in SEM.

讨论了为获得放化石的高质量的二次电子图像所采用的试样制备方法。