多项选择题
A.直拉法B.直熔法C.区熔法D.浇铸法
A.5:01:01 B.6:01:01 C.5:03:03 D.6:03:03
A.109°30’ B.109° C.109°25’ D.109°28’
A.0.736V B.0.976V C.0.876V D.0.686V
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