The results show that the friction coefficient of the steel in dry sliding friction decreases with increment of load and speed.

結(jié)果表明99在线精品，摩擦系數(shù)是隨著法向載荷和滑動(dòng)速度的增加而降低91国内精品久久久久精品一本。

By utlizing the division of light beam instead of single-point collimate and scan, the method acquire multiple-beam confocal measurement synchronously.

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According to the torque command and the speed performance during the initial state of an ac drive or using a mode selection, the rotor time constant is tuned and identified.

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On the basis of a general ac drive, the second method doesn't require additional sensors. According to the torque command and the speed performance during the initial state of an ac drive or using a mode selection, the rotor time constant is tuned and identified.

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Some parameters such as Indoor radiation heat transfer, convective heat transfer, MRT, OT, radiation heat transfer coefficient, convective heat transfer coefficient, and PMV-PPD were calculated under a steady condition. From the result, we can conclude, when operation under the combination system and worst-case test, if floor temperature is about 21℃, supply air temperature is 21℃, air velocity is 1m/s, the equlvalent coefficient of heat transfer between floor temperature and OT is 13.6w/m2k, where 5.68w/m2k is equlvalent coefficient of radiant heat transfer, 9.48w/m2k is convective heat transfer coefficient. And when air velocity is higher, supply air temperature is lower, the radiant heat transfer between floor and others is lower. In the whole experiment, the floor temperature was keeping above the indoor air dew point, and condensation was not appeared.

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The seepage velocity in peak stress decreases with the increase of confining pressure, and indicates obvious linear relationship.

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Short-run impatience of consumers results in the increment of tax rate, and consequentially the decline of capital accumulation rate.

消費(fèi)者這種短期的非耐心導(dǎo)致了收入稅率的增加，從而降低了資本的積累速度91自啪。

The theory is that, given constant supply pressure, restricting volume will increase velocity.

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The third quarter of continued growth in the bond market, bond fund net benefit most, the growth rate significantly higher than the net-debt funds, of which two-CITIC Fund net profit growth of up to 6.08 percent, and increased profits to pay the Bank AB , Silver cross by Lee C, strong debt amounted to A, B, GF Strong growth in net debt funds, and so are more than 3%.

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