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Segregating Wood and Bark Chips by Photosorting

John A. SturosDouglas B. Brumm

出版	Department of Agriculture, Forest Service, North Central Forest Experiment Station, 1978
URL	http://books.google.com.hk/books?id=ek-pa89JYy4C&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN