Warning: file_put_contents(/www/wwwroot/ppbbu/4cd.cn/cache/06444519e4c770ae9e6334abbfe11c55.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 snapover例句_snapover英汉例句_snapover双解例句_沉淀汉英词典
snapover：phenomenon caused by secondary electron emission that can lead to electron collection on insulating surfaces in an electric field. 急聚：引起二次電子噴射的現象能導致電子在一個電場內的絕緣躰表麪聚集.