The principle of the aerodynamics is used to study the landwind field characteristic of the Daqing oil field and the wind load spectrum theory of oil rig derrick has been established.
运用空气动学原理,研究了大庆油田的陆地风场特性,进行了井架结构风载荷谱理论分析。
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The land under wind turbines can be used for grazing cattle and other purposes, and leasing land for wind turbines can provide extra income for farmers and ranchers.