Dn Value Amounts to 130 000mm · r/ min High-speed Ballscrew

1、

The result of variance analysis shows that, the best conditions of technology are: the stir speed is 400 r/ min;

方差分析结果表明，冰片微粉化的最佳工艺条件是：搅拌速度为400r／min；

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2、

When stirring intensity exceeds 100 r/ min, it has no obvious effect on RTD.

当搅拌转速超过100r/min时，搅拌转速对停留时间分布的影响不大。

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3、

The simulation system can bring 20000 g setback, 20000 r/ min spin for about 1 ms.

该模拟系统模拟产生的后坐最大为20000g，旋转最大转速为20000r／min，持续时间最长约为1ms。

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4、

And 960 r/ min of rotation speed will make more low in humid, making SOD activity reduced.

而960r/min的风机转速会使得烤房内相对湿度更低，使得SOD活性降低。

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5、

Washing ∶ phase ratio ( volume) is 20 ∶ 1, vibration frequency is 100 r/ min;

洗涤：振动频率为100r/min，相比（体积）为20∶1；

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6、

When the brake speed is 3000 r/ min, the material's wear intensity is minor.

制动速度大于4000r/min时，摩擦系数迅速下降；

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7、

The optimal rate of stirring is between 450 r/ min~ 500 rpm.

适宜的搅拌速度是450r／min～500r／min。

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8、

In fact, design turn speed is 315 r/ min, axle power is 2.2 kW.

实际设计转速315r/min，轴功率22kW。

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9、

The rated wind power machine rotate speed rating is 70 r/ min by this test.

风力提水机的风力机额定转速为70r/min。

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10、

Potentials for rotor spinning at speeds up to 180000 r/ min

转杯纺纱速度有潜力达到180000r/min

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11、

Pump speed 60 r/ min;

泵速60r/min；

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12、

Amount at the speed of 1500 r/ min when the load is a constant;

当负荷不变时，摩擦力矩值在转速1500r/min时达到最大值；

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13、

The optimal shaking speed is 210 r/ min;

摇瓶的适宜转速为210r/min；

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14、

The numbers of rotation per minute induced by Apomorphine at 4,6 and 8 weeks after treatment with GSH in partial PD group were significantly lower than that before treatment and in the control sub-group(( P

部分PD GSH亚组治疗后第4周、6周、8周阿朴吗啡旋转试验每分钟旋转次数较治疗前及相应的对照亚组显著减少（P

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15、

Test shows: the rotate speed of tray 270 round per minute, A type installation, working in the first gear, the clearance of the ditching shovel 1.5 cm. The performance of the ditching and soil casting is best on this condition.

试验表明：开沟刀盘转速270r／min，A型安装方式，Ⅰ挡行驶作业，开沟铲间隙1.5cm时，开沟抛土性能最好。

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16、

When the crank rotates at the speed of 20 rad/ s, mechanisms are in an unstable state, at an angle of about 300 °, the actual clearances are below the radium of clearances, pairs lose contact, which results in collision between them;

当曲柄以低速20rad/s转动时，系统处于极不稳定的震荡状态，在转至300°左右时，运动副间隙小于半径间隙，脱离接触，发生明显的分离碰撞现象。

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17、

The analysis followed indicates that the identification error decreases with the increasing of stiffness and becomes smaller when the damp is in an appropriate extent ( about 0.1~ 0.3 Nm/ ( rad/ s)).

计算分析表明，随着系统刚度的增大，辨识误差逐渐减小；当系统阻尼在一个比较合理的范围内时（0.1～0.3Nm/（rad/s）左右），该辨识机制具有较小的辨识误差。

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18、

The shear rheological tests at shear rate 50 rad/ s showed that the shear viscosity of nano-PVC composite resin was about 10 times lower than that of common PVC resin.

在剪切速率为50rad/s的剪切流变实验中，纳米PVC比普通PVC切变黏度降低了一个数量级。

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19、

With the speed of 20 rad/ s, when damping coefficient is assumed 175 N · s/ m, distinct separation and collision happen between pairs;

在含间隙机构中，曲柄以低速20rad/s转动，当取法向阻尼系数为175N.s/m时，副元素发生明显的分离碰撞现象；

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20、

Based on this identified model, zero phase error tracing controller ( ZPETC) is designed. Closed-loop band width is increased to 100 rad/ s or so.

基于闭环系统辨识模型设计了零相位误差前馈控制器（ZPETC），ZPETC将闭环系统带宽拓宽为100rad/s左右。

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