37.決定藻膠(alginate)印模材是屬於快速硬化(fast-set)或一般硬化(regular-set)乃是利
用何種成分含量的比例來做調整?
(A)磷酸鈉(sodium phosphate)
(B)硫酸鈣(calcium sulfate)
(C)矽酸鹽粉(diatomaceous earth or silicate powder)
(D)有機二醇脂(organic glycols)
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統計: A(1130), B(221), C(219), D(32), E(0) #1152086
統計: A(1130), B(221), C(219), D(32), E(0) #1152086