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With the increase of gas rate of tray holes the velocity of liquid phase on plate only increases a little between caps.The clear liquid height was measured by communicating pipe. The results indicate that the distribution of liquid height is different from traditional trays. The clear liquid height increases with the liquid flow and the height of weir, and decreases with the increase of the gas rate and then return. The gradient of liquid level of CTST is less than that of sieve plate.

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For the characteristics of voile cleaning machine in textile producing, a new control system based on CAN fieldbus is presented in this paper, The principle of the system is introduced, The interface of the network and the communication protocol of the system are discussed in detail, The design of control software is also analyzed, the main program of communication is given. For CAN network communication of master and slave station,the system works reliably, and the voile cleaning is controlled intelligently. It is an advanced control technology. which is verified in practice .

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The results showed that the different mass concentration of HPAM's absorbance decreases slightly when the PH value of the buffer solution is 5.0, but its reproducibility is better;In order to make the absorbance become more stable, the reaction time was identified adding proper quantities of bromine water, sodium formate and starch-cadmium iodide reagent to the solution separately; the mass concentration curve of the HPAM was draw, by means of the straight degree of the curves, the coincidence degree of the straight line about the concentration of every sampling point and so on , it shows that the mixer has good mixed effect compared with the standard curve.

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Hamper options this year feature a healthy theme. The " Healthy Option" hamper in red and golden fabric-lined wooden box contains a box of rice cakes, Penfolds red wine, a Chinese knot and a tiger soft toy, pistachio nuts, ginseng, ingredients for making herbal tonic such as star fish and star horse, barley and lily bulbs for pork rib tonic, and Chinese herbal tonic. Otherwise,"The Organic Pick" containing organic rice, millet, red beans, green beans, camellia oil, and more organic goodness.

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It was necessary to take an account of stock, and straighten it out.

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Geothermal exploration ; lithology sounding technology of telluric electricity field ; logging ; contrast ; Linqing in Shandong province

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