Spatial distribution of water erosion was divided into two areas: north hilly area of medium erosion intensity and central district of light erosion intensity.

并将库区水力侵蚀空间分布划分为北部中低山丘陵中强度侵蚀区和中部河谷城区轻度流失区。

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T he training program might include light, medium and heavy phases that vary the workload a light phase means a low workload of mostly lower intensity training like jogging, drills and light weights.

这些项目包括轻度、中度和高强度三种。经度训练指强度相对较低的训练，如：慢跑、练习、轻量训练。

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It is inevitable that a gain medium exists always in a practical laser resonator. Moreover, it is impossible to ensure the pump light intensity distribution in the laser medium is uniform.

实际的激光腔不可避免有增益介质的存在，同时，也不可能保证光强的泵浦分布是均匀的。

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And under International Civil Aviation Organisation regulations, any structure over 45 metres tall on a flight path or near an aerodrome must be fitted with a medium-intensity aircraft warning light.

BBC: London helicopter crash: What are the rules for pilots?