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饲料加工设备图形符号
Graphical symbols for feed processing equipment
参考页数:29
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自动挤奶设备.要求和试验
Automatic milking installations - Requirements and testing
参考页数:14P.;A4
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农业谷物干燥机 干燥性能的测定 第2部分:附加方法和农作物特定要求
Agricultural grain driers - Determination of drying performance - Part 2: Additional procedures and crop-specific requirements
参考页数:102P.;A4
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