In the process of wollastonite fining, we can forge and then cool it to protect its crystal structure which is short acicular fiber.
硅灰石微粉碎过程中，为保护硅灰石的短纤维针状结构，可在粉碎前对硅灰石进行煅烧空冷处理。
The crystal structure, chemical composition, physical properties and optical features of the acicular muscovite studied are the same as, or similar to, those of ordinary muscovite.
它的晶体结构、化学组成、物理和光学性质与普通白云母相同或类似，属于普通白云母。
With the increasing of heat input, the width of columnar crystal is increased, the dimension of acicular ferrite of weld metal is increased.
随着热输入增大，焊缝柱状晶宽度增大，焊缝中针状铁素体板条有粗化的趋势；
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