A.600~850℃ B.850~1050℃ C.1050~1200℃ D.1200~1450℃ E.1450~1600℃
A.12% B.8% C.88% D.50% E.92%
A.唇面頸1/3與舌面頸1/3 B.唇面中1/3與舌面頸1/3 C.唇面切1/3與舌面頸1/3 D.唇面頸1/3與舌面中1/3 E.唇面切1/3與舌面中1/3