[問題] 假牙材質問題請教
請問假牙材質中, 例如:
鈀金(53%鈀金, 38%銀) => 91%
貴金屬(2%黃金, 鈀金79%) => 81%
加起來總合為什麼不是 100% 呢? 其它未註明的成份是什麼呢?
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