方法：用放大镜观察二者的原药材外形；用显微镜观察二者的粉末显微特征，并用薄层色谱法对二者进行对比试验。
Methods: the shapes of the two raw and processed materials were observed with the magnifier, and the characteristic microstructure of the two kinds of powder with the microscope, too.
成型活性炭克服了粉末活性炭的以上缺点，并可通过加工获得需要的外形，有着更为广阔的应用领域。
Further more, it may cause dust pollution. Formed activated carbon has no these disadvantages, and it is also can be easily machined into the shapes needed, so it has a wider fields of application.
西磁公司的磁力架装有外形美观，合理分布的磁棒，能提供高强度的磁场吸引住流动物料中的铁粉末，铁屑，和其他带磁性小片金属。
SWMAG Magnetic Grate provide a properly configured, high-density magnetic field to trap and hold ferrous fines, fragments, and small metal objects.
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