ashless filterfilter paper for quantitative analysisqualitative filter paperquantitative filter paperquantitative paper定量: quantify; norm; ration; allo ...滤纸: filter paper滤纸(尤指定量滤纸)。: filter paper无灰滤纸;定量滤纸: ash-free filter高流量滤纸: high volume filters下载手机词典可随时随地查词查翻译