大练兵 mass drill

The Shenzhen police force carried out a mass drill on Tuesday as it ramps up efforts to ensure public security for the 70th anniversary of the founding of the People's Republic of China.
8月6日，根据广东省公安厅统一部署，深圳市公安机关在宝安海滨广场举行了广东公安夏季大练兵“深圳亮剑”行动。

A total of 12,000 policemen, as well as 50 armored vehicles, 200 emergency unit vehicles, 1,200 motorcycles, five helicopters, eight vessels and two amphibious cars, participated in the exercise.
在行动现场，1.2万名警力整齐集结，装备精良，50辆装甲车、200辆冲锋车、1200台铁骑摩托车、5架直升机、8艘船艇、2辆水陆两栖车以及其他装备分列周围，海陆空警种齐上阵。

The drill covers anti-terrorism exercises, joint air and sea patrols and anti-riot exercises.
行动中，深圳市公安机关展开了反恐处突、海空联合巡逻、防暴等三个科目的演练。

Chen Bin, deputy head of the security and patrol unit at the Shenzhen Municipal Public Security Bureau, said ensuring social order and public security in Shenzhen is of great importance for Guangdong province and also the whole country.
深圳市公安局治安巡警支队副支队长陈斌表示，保障深圳社会秩序和公共安全对于广东省乃至全国而言都相当重要。