periodical 考研雅思GMAT

Britain's best periodical art magazine.

英国最好的定期版的艺术杂志。

I'll send you all the periodicals available.

我将把我能得到的期刊给你寄去。

Military test equipment is importance part of air-weapon system,it can finish periodical maintenance and prebattle training,it is also key factor in exerting ability of air-weapon.

军用检测设备是机载武器系统的重要组成部分，用以完成机载武器定期维护和战备训练，对确保机载武器作战效能的有效发挥起着关键作用。