冷却速率越大或预变形处理以后的试样在熔化过程中更容易发生二次枝晶臂之间的合并。
The more the increase of cooling rate or pre-deformation, the more the secondary dendrite arms are easy to coarsen.
"有时候，在提炼的过程中会出现这些情况：一个气泡没有被移除，一个砂粒没有熔化，（熔融的）锡的一次颤动把波纹带进了玻璃带中。
Occasionally, a bubble is not removed during refining, a sand grain refuses to melt, a tremor in the tin puts ripples into the glass ribbon.
最后，这块陨石表面还有金属熔化的块状斑点，可能是降落过程中的高温使金属熔化在石头表面。
Finally, the surface of this meteorite melted lump of metal spots there may be landed during the metal melting temperature in stone surface.
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