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转子式流速仪
Rotating current meter
价格：￥0.00
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河流冰情观测规范
Specification for observation of ice regime in rivers
价格：￥0.00
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降水量观测规范
Specification for precipitation observations
价格：￥0.00
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烟草专用透气度流量盘检定规程
Tobacco-Verification Regulation of Air Permeability Standard
价格：￥0.00
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水文年鉴汇编刊印规范(附条文说明)
Specification for compilation and publication of hydrological yearbook
价格：￥48.00
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河流泥沙颗粒分析规程
Technical standard for determination of sediment particle size in open channels
价格：￥0.00
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电力工程水文技术规程
Technical code of hydrology for electrical power projects
价格：￥0.00
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