Most of the students, professors and others who came to vent their anger did so peacefully, but one group broke off from the main rally, smashed windows and set fires.
大多数前来发泄愤怒的学生，教师和其他人员表现得比较镇静，但有一部分人冲出人群，砸碎窗户并纵火。
2
If you see smoke due to operation of safety vent, please turn off the main switch or pull out the plug from the outlet.
若看见因防爆阀动作而产生的烟气，请关闭主开关或拔开离合器。
3
Emergency vent Manhole Cover is a kind of rapid relief-pressure device. Its technical performance, main material and main parts'materialare the same as HXF-HR type breather manholes.