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
导电处理应采用碳-金双层镀膜法。
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，认为放射虫化石导电处理应采用碳-金双层镀膜法。
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