晶粒生长 grain growth ; growth of grain ; the crystal grain growth ; grains growth 生长迟缓 EUGR ; growth retardation ; failure to thrive ; stunting .
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The crystal grain growth inhibitor and it's inhibiting mechanism in super fine cemented carbides are summarized in this paper.
本文综述了近几年超细硬质合金中晶粒生长抑制剂及其机理的研究概况。
If the generation of the nucleation rate faster, and crystal nucleus formation, growth speed is slow, it generated more cell number, grain is fine.
如果晶核的生成速度较快，而晶核生成后的成长速度较慢，则生成的晶核数目较多，晶粒较细。
But in the backing welding, columnar grain-growth will be appeared in the direction of crystal direction, it effects the welding quality seriously.
但是单面焊打底层焊缝中出现的沿焊缝柱状晶结晶方向的柱状气孔，严重地影响着船舶焊接质量。
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