radiolarite

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

次验，认为放射虫化石表面导电处理应采碳-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.

讨论了为获得放射虫化石高质量二次电子图像所采样制备方法。