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Warning: Trying to access array offset on value of type bool in /mnt/mydata/x/websites/u_cndev/us-includes/3rdparty/secache/secache.php on line 75 所以我想 DIY,不过中间那个多扇叶的转轮不好找。负离子很简单的,就是个高压放电。一个高压发生器+两根放电用的线 <- 中国开发网