Experiments of flow conductivity closure stress of typical propping agent are done, propping agent short-term flow conductivity alteration index is defined, by this, the relation between fissure short-term flow conductivity and closure stress, it is close to exponential relation. 4. Establishing the mathematical simulator of hydraulic fractured well's production in a steady state, finding the relation curve between dimensionless flow conductivity and fracture penetration coefficient by means of calculation and analyses, it is the basis of hydraulic fracture. 5. Expatiating the importance of optimized hydraulic fracturing design in reservoir engineering, advancing the optimizing design method, fracture dimension can be calculated easily when the physical parameters are known. 6. Production rate decline standard curve of vertical fractured wells is achieved by mathematical simulation, when the flow pressure is certain , by asymptotic analyze, this decline curve is close to exponential relation.

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The foundation of this system provides a good reference to promote the standardization and intelligence of the overhaul and maintenance of vacuum switches. This paper develops a special HF pulse power supply for internal pressure estimation, which achieves the output of HF-HV sinusoidal pulse wave whose frequency and amplitude can be modified respectively, and meets the design requirements according to the results of Simulink simulation and practical experiments. With the help of AT89S52, this paper designs an I~2C serial bus based signal detection system for peak value signal acquisition of HF pulse currents, which communicates with the upper computer by asynchronous serial communication for uploading the data. In the upper computer, a human computer interface is developed by Matlab software, whose functions are to do some computation and graphic display, such as calibrating the relation curve of vacuum degree and peak value of HF pulse currents, vacuum degree computation, and vacuum lifetime evaluation analysis basing on grey forecasting model as well as making relative suggestions.

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This paper discusses the automatic test method of the assorted clearances existing in the wheel hub and the master pin, this method is realized to analysis the relation curve between the displacement and the driving power of the running wheel drived by the bearing bedplate.

本文探討了輪轂軸承及主銷的配合間隙的自動(dòng)檢測(cè)方法免费播放大片免费观看视频，該方法是通過(guò)分析車輪在支承臺(tái)板的帶動(dòng)下，產(chǎn)生運(yùn)動(dòng)時(shí)的位移和驅(qū)動(dòng)力關(guān)系特征曲線實(shí)現(xiàn)的人人超碰人人双人人舔。

Similarly there emerges a new branch of dispersion relation curve in the original frequency gap.

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By means of a linear array CCD lightintensity distribution measuring system, via the variation of the frequency and the power of ultrasonic wave, the direction control and the intensity modulation for the laser beam can be carried out. The relation curve between acoustooptic deflexion and modulation measurement is given.

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Based on theoretic research, rotary-ditch machine is produced and orthogonal test is carried out in the farm. By variance and extreme deviation analysis on the test result, all the influence factors on ditcher casting performance are gained, superior level and optimum combination are found out, relation curve of performance target along with factor change is provided.

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The resulting curve breaks into two approximately straight lines. By purely empirical curve fitting method we obtain two straightline equations. Secondly, the recurrence interval and"rain-strength" relation curve on logarithmic paper will also br...

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The second is to measure the relation curve of heat load and cooling temperature under the condition of optimized orifice setting.

在實(shí)驗(yàn)過(guò)程中，還發(fā)現(xiàn)了對(duì)雙向進(jìn)氣閥門的調(diào)節(jié)可獲得兩個(gè)制冷溫度極值的現(xiàn)象射射射干干。

The relation curve between the load and stroke,the distribution rules of stress, strain and temperature have been obtained.

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Take Chongqing for example,the relation between each compositive index and load is analyzed,and the relation curve of power load and compositive index in observation year is also drawn.

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