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水文自动测报系统设备前置通信控制机
Equipment of automation system for hydrological measurement and forecast -- preset communication controller
价格：￥0.00
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水环境检测仪器与试验设备校(检)验方法(附条文说明)
Check Methods of Water Environmental Detecting Instrument and Experimental Equipment
价格：￥0.00
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水文自动测报系统设备中继机
Equipment of automation system for hydrological measurement and forecast -- relay meter
价格：￥0.00
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透水板
Porous plate
价格：￥0.00
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水文绞车
Hydrologic winch
价格：￥0.00
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直线明槽中转子式.流速仪的检定方法
Calibration method of rotating.element current.meters in straight open tank
价格：￥0.00
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水面蒸发器产品质量分等
Grading of products quality for evaporation pan
价格：￥0.00
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