看包围或花塞电极的绝缘子的表面颜色，1、2缸火花塞绝缘子很黑，3、4缸的没那么黑是浅棕色

来源: wibblypig0 于 2022-12-15 10:31:05 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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