... 粒度分选 grain-size sorting 颗粒支撑的 grain-supported 粒间边界 grain-to-grain boundary ...
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许多情况下，破碎的矿石颗粒粒度不足以达到分选所需的目的矿物解离的程度。
In many cases the crushed ore particles are not sufficiently small to permit liberation of the desired mineral so that separation can be achieved.
利用气流分选的方法对粉碎后的废弃印刷线路板中的金属与非金属进行了研究，粉碎后的颗粒在气流作用下按照密度与粒度进行分选。
The metal and non-metal of comminuted printed circuit board scrap was studied by the method of pneumatic separation, comminuted material were separated according to density and size by wind power.
结果指出，若要使某一粒度段的物料在充气水力旋流器内得到有效的分选，其离心力强度应处于适中范围。
The research results show that a moderate centrifugal field strength is optimum for the effective separation of particles with a set size fraction in the air-sparged hydrocyclone.
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