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将原木或原条按树种、材种、规格和等级的一部或全部进行分类的作业,又称品等区分。选材有利于木材的贮存、保管、运输和利用木材,是森林采伐运输生产中的主要工序之一。
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absolute deviation
absolute different
absolute differential
absolute differential calculus
absolute differentiation
absolute dimension
absolute discriminant
absolute dispersion
absolute distance
absolute distribution
absolute dosimeter
absolute efficiency
absolute electromagnetic system of units
absolute electro-magnetic unit
absolute electrophoretic mobility
absolute electrostatic system of units
absolute electrostatic unit
absolute elsewhere
absolute encoder
absolute energy distribution
absolute entropy
absolute error
absolute expansion
absolute extensor
absolute extremum
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