分析结果表明，共晶结晶时硅之所以成为先析出相，铝硅合金之所以存在伪共晶，都有其热力学原因。
The results of analysis show that wty the silicon separatas out as a preliminary phase, and why the Al-Si alloys have their own pseudoeutectic structures are all for thermodynamical reasons.
POM表明，共混物中的PHB球晶形态产生显著变化，球晶尺度减小，且二次结晶被抑制。
It was discovered by POM that spherulitic morphology of PHB in the blend changed significantly, size of the spherulites decreased and the secondary crystallization of PHB was inhibited also.
结论：改后共沸结晶条件优于原共沸晶条件。
Conclusion: This azeotropic crystallizing condition is better than old one.
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