建筑施工是一个多工种、多工序、立体交叉、连续作业的系统工程。
The construction is systems engineering with multi-type, multi-process, interchange and continuous operation.
航空摄影是一项涉及多组织多工序协调作业的综合性系统工程，不仅涉及飞行摄影，而且包括技术性很强的规划设计工作。
Aerial photography is an intergrated systems engineering, which relates to much procedure to be assorted with and which includes not only the navigation, but also the flight plan.
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