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河流泥沙测验及颗粒分析仪器
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河流泥沙测验及颗粒分析仪器
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工学
河流泥沙测验及颗粒分析仪器
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river sediment measurement and grain-size analysis instrument
河流泥沙测验及颗粒分析仪器
测定河流泥沙含量和颗粒级配的仪器。
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