This paper concerns cause of surge as well as hazard to unit and production.
介绍了发生喘振的原因，喘振对机组和工艺生产的危害。
2
Much the same thing occurred at the high school level, with private schools that fuse junior and senior high school into one unit enjoying a remarkable popularity surge.
同样的问题也出现在中学。私立学校把初中和高中合二为一，因此大受欢迎。
3
Hazard and cause of the surge in molecular sieve of molecular sieve purification system in an air separation unit are analyzed. The corresponding treatments and precautions are also proposed.