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Kunio NISHIZAKI
Laboratory of Agriculture Machinery, Hokkaido National Agricultural Experiment Station
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Yasuhiro YOKOCHI
Laboratory of Agriculture Machinery, Hokkaido National Agricultural Experiment Station
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Yoichi SHIBATA
Laboratory of Agriculture Machinery, Hokkaido National Agricultural Experiment Station
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Ryuji OTANI
Laboratory of Agriculture Machinery, Hokkaido National Agricultural Experiment Station