The enclosure is low in cost and applicable in family farmoperation.
且围栏成本较低，适用于家庭农牧场管理。
2
The hourly average daily generation curve is used to express the wind farmoperation constraint and the load changes over time are reflected through the scaling factor.
该模型中通过比例因子来反映负荷随时间的变化，采用日平均发电曲线表示风电场的运行约束。
3
City Hall is unlikely to run "the House"; it will farm out the operation to people rather more experienced at this kind of thing.