Nucleation is a complicated physical process which contains the microcosmic and macroscopic process, the micro mechanismofnucleation is not totally understood.
由于核化过程是一个从微观到宏观的物理过程，且其微观机制尚未得到全面的认识。
2
The rate ofnucleation based on this mechanism has been calculated.
根据这样的机构我们得出有序核的成核率。
3
Influencing mechanismof ultrasonic on refrigerant hydrate nucleation and growth was first analyzed and then experimental study was made.