说明了瓷玻璃复合绝缘子也具有瓷、玻璃绝缘子的优点和缺点。
It is explained that porcelain and glass compound insulator has the advantages and shortcomings that porcelain and glass insulator have.
依绝缘子的材料分，目前有瓷、玻璃和有机复合绝缘子。
In accordance with the insulator material, there are porcelain, glass and composite insulators at present.
最后指出如何进一步提高棒形悬式瓷绝缘子的耐污性能，使其达到或超过目前复合绝缘子的耐污水平是摆在各制造厂家面前的一大课题。
Finally, the author points out that how to improve the anti-pollution performance of porcelain long rod insulator and make it catch or surpass that of composite insulator is the key...
最后指出如何进一步提高棒形悬式瓷绝缘子的耐污性能，使其达到或超过目前复合绝缘子的耐污水平是摆在各制造厂家面前的一大课题。
Finally, the author points out that how to improve the anti-pollution performance of porcelain long rod insulator and make it catch or surpass that of composite insulator is the key...
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