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The effects of operation parameters on separation of fatty acid methyl ester from rapeseed oil deodorizer distillate by molecular distillation were investigated for further utilization of RODD. The results indicated that the recovery of FAME was 41 g/(100 mL) when pressure was 5.2 Pa, evaporating temperature was 120℃, feed temperature was 70℃, wiper rolling speed was 150 r/min, feed rate was 120 mL/h. The biodiesel was analyzed by GC-TOFMS.

为了实现脱臭馏出物的清洁加工，运用分子蒸馏技术分离菜籽油脱臭馏出物中合成的生物柴油，考察了分子蒸馏的操作参数对生物柴油回收率的影响，研究结果表明：当系统压力为5.3 Pa，蒸发面温度120℃，进料温度70℃，刮膜转速150 r/min，进料速率120 mL/h时，生物柴油回收率达到41 g/100 mL。

The designing optimization of structural parameters for the frame of four roller rolling mill was achieved by the utilization of cooperated optimization method.

利用协同优化方法实现了四辊轧机机座的结构参数设计优化。

Aimed at nonlinearity and time variation of hydraulic bending roller system of HC rolling mill, a Fuzzy Radial Basis Function Neural Network controller based on Genetic Algorithm is designed.

针对HC轧机液压弯辊系统的非线形和时变性等特点，设计了基于遗传算法的模糊RBF神经网络智能控制系统，改善了系统的性能。

I knew that I was not sleeping because I can still feel my hand rolling the roller.

我知道我并没有是睡着，因为我仍然可以感受到滚轴在滚动着。

With the development of rolling technology, rollers family becomes more and more stronger.

随着振动压实技术的不断进步，振动压路机家族得到了不断的发展与壮大。

It involves a simple mechanical principle: sliding friction, rolling friction small.

它涉及一个简单的机械原理：滑动摩擦大、滚动摩擦小。

In addition, this paper has also studied some other problems related to the spherical robot, such as, smooth time-variable controller to nonholonomic system, mechanism of rolling friction, and so on.

另外，本文还对非完整系统的光滑时变控制器设计方法和滚动摩阻的作用机理等相关问题进行相应的理论分析和研究。

Owing to their favourable rolling conditions and low friction, cylindrical roller bearings with cage are suitable for high speeds.

由于它们的良好的滚动状况和低摩擦，带保持架的圆柱滚子轴承适合高速运转。

Friction causes a rolling ball to stop finally.

摩擦力使得一只滚动的球最终停了下来。

It provides the testing program of planar bearing rolling friction .

给出了平面轴承滚动摩擦试验方案。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。