Warning: file_put_contents(): Only 0 of 4863 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/62383.com/index.php on line 55 nanometre例句_nanometre英汉例句_nanometre双解例句_流逝汉英词典
Our county is in great need of high-grade white carbon black and nanometre silica products.At present, the products are imported. 我国对高档白炭黑和纳米级二氧化硅产品需求量大，目前主要依靠进口此项目产品。