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[主观题]
贝氏体的微观结构由______和______组成。
A、ferrite and cementite
B、austenite and ferrite
C、austenite and cementite
D、ferrite and pearlite
提问人:网友qingqingpiao
发布时间:2022-01-06
A、ferrite and cementite
B、austenite and ferrite
C、austenite and cementite
D、ferrite and pearlite
A、carbon content
B、pressure
C、heat treatment
D、process
A、8 to 1
B、6 to 1
C、5 to 1
D、4 to 1
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