Like the creatures drawn on the edge of a medieval map, the shapes of the denizens of this land are a mixture of observation and guesswork.

正如描绘在中世纪地图边白处的奇怪生物，未知世界的情形是观测和猜测的混体。

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Expect more people to enhance the land this on one hand observation and analysis.

期盼更多的人加强地这一方面的观察和分析。

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By the project performance, it has introduced some methods such as geophysical prospecting, dynamic and static strain observation to study the relation between drill-hole pumping and land deformation.

论文通过工程实例，介绍了采用物探、动静态应变观测等方法综合研究钻孔抽水与地面变形之关系。

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Forward reconnaissance units mapped the land from high observation points, using maps and hand-held GPS devices to identify targets accurately.

BBC: Afghan soldiers take fight to Taliban 'brothers'

Local Sinn Fein councillor Packie McDonald, who witnessed the incident, said the helicopter appeared to go into a spin as it tried to land at a military observation post.

BBC: Wreckage of the crashed army helicopter in south Armagh