收集了世界上不同地理环境下的37个工程实例的具体参数和使用状况，使用这些数据对该问题进行研究。
Concrete samples of 37 project instances and service condition under different geographic environment in the world are collected and these data is used in our research.
正常情况下的辐射量也随地理环境、海拔等因素变化。当受到X射线辐射或坐飞机时，人们就会受到额外辐射。
Naturally occurring radiation varies depending on factors like local geology and altitude. People are exposed to additional radiation when they get an X-ray or fly in an airplane.
在媒介地理学的视野下，新闻媒介政策在一定意义上可以被看做地理环境造就的延伸物。
From the vision about geography of media, media policy in a sense may be viewed as an extension of the geographical environment.
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