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1·Do you see a polit of American air force with a Lisu man?

你见到一位美军飞行员和一个傈僳汉子吗？

2·A polit noticed a balloon which seemed to be making for a Royal Air Force Station nearby.

一个飞行员发现了一只气球，它像是正在飞往附近的一个皇家空军基地。

3·The excavation technology and design parameters of a polit chamber blasting of underground drainage system in Xiaowan power station are introduced.

介绍了小湾电站右岸地下排水系统的小洞室开挖爆破技术和设计参数。