tungsten powder and tungsten carbide powder-determination of specific surface product简化: simplify; facilitate; ideali ...氮: nitrogen吸附: adsorb; adsorption; sorption法: law氮吸附法表面积: nitrogen adsorption surface area下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:简化氮吸附法，即可在微信中查询翻译
