7. People who lack experience are free to imagine what is possible and thus can appro ach a task without constraints of established habits and attitudes.
缺乏实际经验的人对可能性有更自由的想象空间，所以能够不受固有的习惯和思维的限制来完成任务。
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8. Simulation results show that the optimal common-track constellation can provide favorable coverage performance to China with fewer satellites, and hence is appro.
9. Taking two examples, matching spatial features and their attributes and deleting reduplicate features in spatial database, indicate the technique key point of this appro.
分别以空间要素与其属性挂接和删除重复要素为例，来说明该方法的技术要点。
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10. Taking two examples, matching spatial features and their attributes and deleting reduplicate features in spatial database, indicate the technique key point of this appro.
