9月16日，我国科学家成功研发出风化壳型稀土矿地区开采技术，稀土回收率有效提高30%，杂质含量降开发者_如何转开发低70%，开采时间也大大缩短至原来的七成。风化壳型稀土矿是我国著名的资源，目前普遍采用的铵盐原地
Another problem with str_replace, I would like to change the following $title data into URL by taking the $string between number in the beginning and after dash (-)
加载中,请稍侯......