If the optimum density of forest road network is to be obtained in a piece of cutting area,the ways of yarding need optimum choosing.
网合理密度于集材方式而言,在片伐区上要得到最佳网密度,需要进行集材方式优选。
helicopter yarding
If the optimum density of forest road network is to be obtained in a piece of cutting area,the ways of yarding need optimum choosing.
网合理密度于集材方式而言,在片伐区上要得到最佳网密度,需要进行集材方式优选。
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