To this, the explanation of concerned staff of farming letter agency is: They are having imitate practice, these smother are to put tearbomb on be caused by artificially.
对此,农信社有关人员的解释是:他们在进行模拟演习,这些浓烟是人为投放催泪弹所致。
2
Based on conventional ballistics theory, the mathematical model of the ballistic trajectory which adopts low and high pressure chamber fire mode is established for the small cluster tearbomb.