2007年，宇宙飞船二号飞行器的推进系统在流场测试中于地面爆炸，三名维修工人遇难，另有三名以上人员受伤。
In 2007, the propellant system of a SpaceShipTwo craft exploded on the ground during a flow test, killing three mechanics and injuring three more.
按照年度计划、航班计划、维护方案、飞机状况，制定月维修计划，并预测每月定检、完成非例行工作所需的落地时间和停场时间；
Make monthly maintenance plan according to annual plan, flight plan, Maintenance Program and aircraft status, forecast the landing time and down time for monthly scheduled check and non-routine task;
以大秦铁路湖东站三场为实例，从经济、维修、安全等方面，对铁路站场灯桥照明优化改造方案进行了论述。
Yard of Hudong Station, Daqin Line as an example, this paper expounds the optimization Retrofit scheme of lamp bridge lighting in railway yard from the aspects of economy, maintenance and security.
此租场系统现正进行维修，服务将在短期内恢复，如引起不便，谨此致歉！
This Venue Booking system is under maintenance, the service will be resumed as soon as possible, we sincerely apologize for any inconvenience.
设计出化工设备维修气象指数；依据T10 6场格点预报资料建立了未来4天的滚动预报服务系统。
We designed meteorological index of maintaining chemical equipment, and based on T106 forecast product, built service system on a continuously forecasting basis in 4 days.
摘要：为了提高场桥操作和检查维修的安全性，建立了一个可移动式手柄控制系统。
Abstract: in order to raise the safety of the gantry crane for operation and maintenance, a moveable handle control system has been manufactured.
经过场所评估和安全、维修、生产和项目工程师的一致同意，在正确的评估后在建筑物或安装工程场可能指定为（维修）车间区。
By site evaluation and mutual agreement of Safety, Maintenance, Production and Engineering, areas may be designated Shop Areas on construction or field fabrication projects after proper evaluation.
经过场所评估和安全、维修、生产和项目工程师的一致同意，在正确的评估后在建筑物或安装工程场可能指定为（维修）车间区。
By site evaluation and mutual agreement of Safety, Maintenance, Production and Engineering, areas may be designated Shop Areas on construction or field fabrication projects after proper evaluation.
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