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，认放射虫化石的表面导电处理应采-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.

讨论得放射虫化石的高质量的二次电子图像所采的试样制备方法。