In order to guarantee the normalcy of water-source heat pump heating system, except carries on the hydraulic calculation seriously in the design, correctly chooses each main branch caliber and ensures the rational distribution of flow, as well as uses the heating form of radiation comes from the earth or fan-coil unit, but should also be strict to the quality surveillance in the process of sinking heat source well and recharge well's construction, according to the geological structure, arranges the tube funnel reasonably, and in the unit movement debugging, raises the overall efficiency positively, and achieves the economical operation.

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Hydraulic pressure stimulation of oil and gas well is the main method of stimulation.

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Hydraulic pressure stimulation of oil and gas well is the main method of stimulation.

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Water, electricity, gasoline, and gas are daily necessities but they will be used up.

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Difierent depth measurements were made using a point gauge while velocity measurements were taken using an acoustic doppler velocimeter over a grid defined throughout the junction region in physical model test.

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Different depth measurements were made using a point gauge while velocity measurements were taken using an acoustic doppler velocimeter over a grid defined throughout the junction region in physical model test. The water diversion and vortex precaution device of "∴"-type diversion walls was developed.

現(xiàn)通過(guò)實(shí)體模型試驗(yàn)，利用三維超聲波流速儀量測(cè)不同水力條件下連接井內(nèi)的流速分布曰韩性爱无码无毛片儿，提出了在連接井內(nèi)設(shè)置品字型墻均流防渦裝置的新技術(shù)伊人久久久超碰国产一卡二卡。

Soil or soil outside the camp power (hydro, wind, gravity and freeze-thaw action, etc.) under the action of being washed, erosion, blow-loss, and its been the whole process of handling and deposition.

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Soil erosion is the process of that soil particles with surface attachments are moved, transferred and deposited under external forces, such as water power, gravity and wind power, physical, chemical weathering and eluviations, including human beings activities.

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This dissertation gives the damping iteration method and geome-tric-mean tracing method, both based on inversion of observed ground-water level data, and also gives the proportional iteration (or ortho-gonalization) method based on inversion of hydrogeologic gradient data.

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