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，认为放射虫化石的表面导电处理应采用碳-金法。

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

了为获得放射虫化石的高质量的二次电子图像所采用的试样制备方法。