求翻译：近年来，我国无人侦察机在迅猛发展的同时也暴露出一系列问题，其中一个非常重要的原因是对无人侦察机作战效能评估工作缺乏系统深入的研究。是什么意思？

In recent years, China's unmanned reconnaissance aircraft in the rapid development, while also exposed a series of questions, one very important reason is the lack of in-depth study of the system UAV Combat Effectiveness assessment.

In recent years, China's rapid development in an unmanned reconnaissance aircraft also revealed a series of questions, one of the reasons why it is important for an unmanned reconnaissance aircraft combat effectiveness assessment system lack an in-depth research.

In recent years, our country nobody reconnaissance aircraft also exposed a series of questions while swift and violent development, extremely important reason was to nobody reconnaissance aircraft fighting efficiency appraised the work lacked the system thorough research.

In recent years, the unmanned rapid development while also revealed a number of problems, one of the most important reasons is the lack of reconnaissance UAV operational effectiveness evaluation system for in-depth study.

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