The main driving force in sintering process is
A.the increase in surface area
B.the reduction in surface area
C.the increase in bulk density
D.the reduction in bulk density
正确答案:the reduction in surface area
The main driving force in sintering process is
A.the increase in surface area
B.the reduction in surface area
C.the increase in bulk density
D.the reduction in bulk density
正确答案:the reduction in surface area