リソース タグを付けた: Surveying
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1990/01/01 The majority of farmers in the world still practise some form of subsistence farming. Their draught-animal and handwork-based farming practices, however, cannot be compared with the completely mechanised and highly automated precision-farming practices that are becoming the norm for many of their...
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2005/01/20 Agrodok 6 117 p., illustrated