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试样准备
释义
试样准备
Encyclopedia
理学
【试剂和试样】
释
methods of sampling
试样准备
包括取样和试样制备两步。前者是指从大量物料(分析对象的总体)中取得其中有代表性的一小部分,即在误差允许范围内,这一小部分试样应能代表大量物料的组成。后者是把按一定程序取得的仍然颗粒较大的试样,经过破碎、缩分、研磨、过筛等步骤,制备成适合于作分析用的试样。
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graphical model
graphical partition
graphical processor
graphical representation
graphical scale
graphical sequence
graphical solution
graphical statistical analysis
graphical-statistical analysis
graphical symbol design
graphical system
graphical user interface
Graphical User Interface Design
graphical user interface, GUI
graphic and image information input
Graphic Art of Liao and Jin Dynasties
graphic character
graphic clip
graphic component
graphic correlation
graphic creativity
graphic data
graphic database
graphic design
Graphic Design Art Committee of China Artists Association
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