各地的地理环境条件不同，比如加州位于地震带上，埋地电缆的话，防震措施造价不低。万一地震发生了，供电架空线恢复简单快捷。

来源: Sequoia_CA 于 2025-06-20 06:23:42 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.