白合金已完全熔化了。
更多浪涌后，银板完全熔化，只留下带薄铜板的钨核。
After more surges, the silver completely melted away, leaving only the tungsten core with its thin copper plating.
并归纳出“不均匀混合区”和“不完全熔化区”的形貌特征。
The appearence characteristics of"heterogenous mixture zone'and'partially melted zone"are summed up.
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