Experimental results showed that double coats of carbon and gold on the conductive coating of radiolarite should be used.
通
多次试验，认为
化石的表面导电处理应采用碳-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.
通多次试验，认为化石的表面导电处理应采用碳-金双层镀膜法。
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