Another challenge is establishing and strengthening national monitoring systems that provide data on all children.
另一项挑战是建立和加强国家监测系统，掌握所有儿童的相关数据。
Along with the popularity of the optical fiber communication used in power system, the optical fiber Monitoring system, has been put forward to new requirement and challenge.
随着电力系统光纤通信的普及，对于光纤监测系统提出了新的要求和挑战。
There remained the challenge of perfecting the monitoring of approved activities and of critically assessing results indicators, with changes being made as and when necessary.
目前仍存在完善监督获批活动的挑战以及评估结果指标的挑战，应在必要时进行修改。
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