常规: code of conduct, conventions, common practice, routine (medical procedure etc)...
出动: to start out on a trip, to dispatch troops...
当场: at the scene, on the spot...
趟: classifier for times, round trips or rows, a time, a trip...
利: sharp, favorable, advantage, benefit, profit, interest, to do good to, to benefit...
拘留: to detain (a prisoner), to keep sb in custody...
侧面: lateral side, side, aspect, profile...
早就: already at an earlier time...
参加: to participate, to take part, to join...
赶快: at once, immediately...