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lh522

金虫 (小有名气)

引用回帖:
10楼: Originally posted by wangjilin at 2011-09-21 21:51:04:
上面解释的很详细了 呵呵

你说的是几楼???
好好科研,天天向上!
11楼2011-09-23 20:53:38
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wangjilin

木虫 (著名写手)

龙情

引用回帖:
11楼: Originally posted by lh522 at 2011-09-23 20:53:38:
你说的是几楼???

偏向于W博士的见解。P 颗粒 我认为是特指宏观的粒子      G 晶 特指微观的 可以使单晶 也可以是多晶    但是某种程度上 二者又差不多  个人见解 呵呵
烟花易冷
12楼2011-09-23 20:58:17
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wangsne

新虫 (小有名气)

A particle is a single physical entity. A particle can be separated from other particles by picking it up. A lump of rock, a piece of ore, a minute speck of dust are all particles. Size reduction and separation processes deal with particles.

A grain is a piece of a single mineral. All minerals are naturally crystalline, so grains are crystals. In a large ore particle, the grains of valuable minerals are distributed throughout the grains of gangue minerals. Under a microscope you would see that grains have well defined boundaries separating them from other grains making up the particle.
13楼2019-09-01 22:55:40
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