速度

Swifter is for speed, the speed of making predictions, decisions and ution of ideas.

更快的是速度，预见的速度，决策的速度，执行的速度。

Numerical simulation results reveal that the tangential, axial velocity and radial velocity in the annular space are asymmetric distribution, and basically symmetric distribution in the separation space.

在旋风分离器的三维速度中，切向速度在环行空间具有明显的非轴对称分布，向下进入分离空间后很快发展为轴对称分布；轴向速度和径向速度在环行空间存在一定的非轴对称性，而到分离空间后基本上是轴对称分布了。

Remember it takes considerable time and distance to reach high speed: if terminal velocity is 180 km/h, it takes 6.1 seconds (151 m) to reach 150 km/h in free fall, while to reach 170 km/h takes 9.1 seconds (283 m).

注意达到这一速度需要相当长的时间和距离：如果终端速度为180km/h的话（这一速度由自由式跳伞员给出），需要6.1秒，151米的自由下落达到150km/h的速度，如果达到170km/h需要9.1秒，283米的自由下落。

By analyzing the force on a single droplet, the function of droplet velocity with time was obtained, and calculation results showed that the droplet velocity had a quick decent, and dropped to its terminal velocity in 0.6 s.

对单液滴进行受力分析，推导出了液滴运动速度与时间的关系式，并针对CO2-H2O体系计算了不同液体雾化压力下液滴速度的变化，结果表明，液滴速度衰减很快，在0.6 s内液滴趋近其终端速度。

At 135 mm depth and 0.28 m/sec speed, the biomimetic furrow opener surface with UHMWPE tubular ridges recorded 0.62 kN and 0.17 kW, while at 135 mm depth and 0.92 m/sec speed, the values were 0.91 kN and 0.82 kW. The experimental values of resistance force and power for the conventional surface furrow opener at 100 mm depth, and 0.28 m/sec speed were 0.72 kN and 0.20 kW, while at 100 mm depth and 0.92 m/sec speed, the values were 1.11 kN and 1.0 kW. At 135 mm depth and 0.28 m/sec speed, the conventional surface furrow opener recorded 0.93 kN and 0.25 kW, while at 135 mm depth and 0.92 m/sec speed, the values were 1.50 kN and 1.35 kW.

试验测试结果：当耕深100 mm和耕作速度0.28 m/sec时，实测的普通开沟器的土壤阻力和动力消耗分别为0.72kN和0.20kW；当耕深100 mm和耕作速度0.92 m/sec时，实测的普通开沟器的土壤阻力和动力消耗分别为1.11kN 和1.0kW；当耕深135 mm和耕作速度0.28 m/sec时，实测的普通开沟器的土壤阻力和动力消耗分别为0.93kN和0.25kW；而当耕深135 mm和耕作速度0.92 m/sec时，实测的普通表面开沟器的土壤阻力和动力消耗分别为1.5kN和1.35kW。

The predicted values of resistance force and power for the conventional surface furrow opener at 100 mm depth and 0.28 m/sec speed were0.51 kN and0.14kW, while at 100 mm depth and 0.92 m/sec the values were0.98kN and0.88kW. At 135 mm depth and 0.28 m/sec speed, the conventional surface furrow opener recorded 0.70 kN and 0.20 kW, while at 135 mm and 0.92 m/sec speed, the values were 1.40 kN and 1.26 kW. The predicted values of resistance force and power for the biomimetic furrow opener surface with UHMWPE tubular section ridges at 100 mm depth and 0.28 m/sec speed were 0.45 kN and 0.12kW, while at 100 mm depth and 0.92 m/sec speed, the values were 0.73kN and 0.66 kW.

对于超高分子量聚乙烯材料仿生脊型非光滑结构表面，当耕深100 mm和耕作速度0.28 m/sec时，预测的仿生开沟器的土壤阻力和动力消耗分别为0.45kN和0.12kW；当耕深100 mm和耕作速度0.92 m/sec时，预测的仿生开沟器的土壤阻力和动力消耗分别为0.73kN和0.66kW；当耕深135 mm和耕作速度0.28 m/sec时，预测的仿生开沟器的土壤阻力和动力消耗分别为0.62kN和0.17kW；而当耕深135 mm和耕作速度0.92 m/sec时，预测的仿生开沟器的土壤阻力和动力消耗分别为0.91kN和0.82kW。

The experimental values of resistance force and power for the biomimetic furrow opener surface with UHMWPE tubular section ridges at 100 mm depth and 0.28 m/sec speed were 0.60 kN and 0.16 kW, while at 100 mm depth and 0.92 m/sec speed, the values were 0.80 kN and 0.72 kW. At 135 mm depth and 0.28 m/sec speed, the biomimetic furrow opener surface with UHMWPE tubular section ridges recorded 0.76 kN and 0.21 kW, while at 135 mm depth and 0.92 m/sec speed, the values were 0.95 kN and 0.85 kW. The predicted and experimental values of resistance force and power for the conventional surface furrow opener were higher than predicted and experimental values for the biomimetic furrow opener surface with UHMWPE tubular section ridges.

对于超高分子量聚乙烯材料仿生脊型非光滑结构表面，当耕深100 mm和耕作速度0.28 m/sec时，实测的仿生开沟器的土壤阻力和动力消耗分别为0.6kN和0.16kW；当耕深100 mm和耕作速度0.92 m/sec时，实测的仿生开沟器的土壤阻力和动力消耗分别为0.8kN和0.72kW；当耕深135 mm和耕作速度0.28 m/sec时，实测的仿生开沟器的土壤阻力和动力消耗分别为0.76kN和0.21kW；而当耕深135 mm和耕作速度0.92 m/sec时，实测的仿生开沟器的土壤阻力和动力消耗分别为0.95kN和0.85kW。

For collinear collision, the preceding collision velocity and post collision velocity are calculated on the basis of the slippage distance and unreturnable distortion of collision vehicle; For collinear collision, the preceding collision velocity and post collision velocity are calculated on the basis of the impact locality and stop locality of collision vehicle.

对于一维碰撞，根据碰撞后车辆的滑移距离和车辆的塑性变形量，反推计算出车辆碰撞后的速度和碰撞前的接触速度；对于二维碰撞，可以根据车辆的碰撞位置和停止位置，反推计算出车辆碰撞后的分离速度和碰撞前的接触速度。

Flow disciplinarian of different PH indicator polymer solution and newtonianliquid in annulus line had been studied, and found speed distributing, vortex,streamline of annulus line, analytic flow field distributing in annulus and eccentricsituation and compared the results with prevenient schloar, some results different fromprevenient results are get, shch as the relation of average velocity and maxiumvelocity is not less with the viscosity exponent under the annular line, the fluid speedaffect the relation.

应用 PIV 分别研究了不同浓度的聚合物溶液以及牛顿流体在垂直环空管道中的流动规律，得到了环空管道中流体的速度分布情况、涡量情况、流线情况，分析了同心和偏心情况下环空管道内的流场分布规律，并与前人的计算结果进行了比较，得出了一些与以前不同的结论：同心情况下平均流速与最大流速的关系，并不是完全与粘性指数 n 值有关系，还与管道内流动的流动速度有关系，当速度较小时，两者的差别就小，速度大时，不符合这种规律。

Through analysis of experiments, the law about the angle of straw influenced bymachines ground speed and conveyor speed was found. Under the normal work, the lowerground speed and conveyor chain will be favorable for good order of the straw in windrow.

通过试验，得出了机器前进速度和输送链速度对铺放角的影响规律，确定了在满足输送要求的条件下，采用较慢的机器前进速度和输送链速度助于条铺的整齐。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。