人力除雪 “歩掛り” の研究
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概要
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The author investigated how much snow (m<SUP>3</SUP>) one man can remove in a day with a shovel.<BR>The efficiency depends upon the snow-quality and the height and distance to deposit the shovelled snow.
The author investigated how much snow (m<SUP>3</SUP>) one man can remove in a day with a shovel.<BR>The efficiency depends upon the snow-quality and the height and distance to deposit the shovelled snow.