This article mainly introduced the city guard rail sweeps clear the vehicle in the development present situation and the present technology insufficiency, has analyzed the domestic formation product technical characteristic and the good and bad points, obtains the present water spray vehicle chassis situation through the contrast, then chooses this design through the analysis comparison each kind of plan, for instance said obtains the hydraulic transmission through the crosswise comparison to teach the mechanical drive the merit, then the further showing hydraulic transmission plan arrangement, obtains the entire wrap equipment on vehicle scheme of arrangement through the analogy, but also absorbs a present more advanced position to correct an error the system.

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Proposes a method for selecting optimal chiller unit configuration in design phase, in which the energy consumption of chillers is simplified to the function of actual cooling capacity and entering water temperature of the condenser, then the all-year building load frequency distribution under different outdoor wet-bulb temperature that determines the minimum entering cooling water temperature is obtained by dynamic load calculation, and finally, calculates the all-year energy consumption and energy consump...

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The reason that caused the common air leakage defect of the aluminum alloy wheel hub with web spokes in production was analyzed using CAE technology, and the improvement scheme of the mold for wheel hub gravity casting was proposed.

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Research has been done on the coupling form between the two-row planetary gear train and the shift restriction based on the matrix,and then the method of establishing mathematics model has been presented to analyze the planetary gear transmission using MATLAB.

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Finally, based on the principle of the selection of express highway, the scheme of the selection of express highway of the Qinyu landslide is optimized and proposed the scheme of right bank tunnel is the best from the engineering and geological perspective.

綜合上述研究成果97影院亚洲无码，結(jié)合公路選線原側(cè)，從工程地質(zhì)角度上黄色一级影片，對(duì)秦峪滑坡群段公路選線方案進(jìn)行優(yōu)化黄视频网站入口，建議右岸隧道方案為最優(yōu)方案。

Firstly in the paper the research of hydraulic characters and the optimize of structure have being carried out on the four bigger design schemes of permanent internal dissipation discharge tunnel reconstructed from the right banks diversion tunnel of Gongboxia Power Station with a method of theoretical analysis combined with test comparisons. On this basis , two form swirling flow internal dissipation schemes, vertical and horizontal axis are recommended to the construction unit of the station as the schemes to be selected next.

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The methods testing the WEP usually are torsion pendulum and free falling, the latter one is limited by the height of experiment, so the sensitivity of this method can't be improved, thus nowadays the torsion pendulum is mostly used in high sensitivity experiment.

檢驗(yàn)弱等效原理的方法多為扭秤方案和自由落體方案，自由落體法由于受到實(shí)驗(yàn)高度的限制综合九九色，使得在地球上的實(shí)驗(yàn)精度無(wú)法得到進(jìn)一步提高色中色综合网，因此現(xiàn)在高精度的地面實(shí)驗(yàn)大都采用扭秤方案。

This method makes up the shortage of traditional decision network planning and makes the blue print choice more reasonable. Because this method comprehensively considers the six aspects of the project. The six aspects are duration ,cost, quantity, technique risk, strategy intention and maintenance. Second, it researched the calculation method of time parameters based on fuzzy triangle number of decision network planning. At last, it studies the fuzzy duration-cost optimization of decision network planning.This dissertation makes use of fuzzy theory to the decision network planning.

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