Warning: file_put_contents(/home/www/wwwroot/ndsq.cn/cache/9eacedf205c5973076a30e3b1224d988.txt): failed to open stream: No space left on device in /home/www/wwwroot/ndsq.cn/index.php on line 55 chalk test是什么意思，chalk test的翻译，chalk test音标、读音、用法和例句_開心英語字典_柠咚词
Using French chalk which was dried by the 120℃ air as the normal air model, the quality which the fabric contains particle can be test. 利用120℃的高溫烘乾過的滑石粉作爲塵源，試騐得到該濾料的容塵量；