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鲜奶速检器
Tester for milk
价格:¥0.00
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电围栏脉冲器
The electric pulser of fence
价格:¥0.00
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畜禽场场区设计技术规范
Technical code for overall plane design of livestock farms
价格:¥0.00
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养鸡机械设备安装技术条件
Technical specification of installation for chicken breeding equipments
价格:¥0.00
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种羊场建设标准
Construction criterion for stud farm of sheep or goat
价格:¥0.00
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围栏 术语
Terminology for fences
价格:¥0.00
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中频式剪羊毛机
Intermediat frequency motor sheep shearers
价格:¥0.00
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孵化机 试验方法
Test methods for hatcher
价格:¥0.00
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孵化机 技术条件
Specifications for hatcher
价格:¥0.00
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挤奶设备.术语
Milking machine installations.Vacobulary
价格:¥0.00
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