一位独行的登山者在攀登中国西南地区石林彝族自治县的石灰岩层。
A solitary climber is scaling the limestone formations in south west China's Shilin Yi Autonomous County.
在传统系统中电流加石灰会引出漏电配位的问题。
Current liming in a traditional system can present problems with fault coordination.
在传统系统中电流加石灰会引出漏电配位的问题。
Current liming in a traditional system can present problems with fault coordination.
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