1.In order to decrease the effect of sample heterogeneity on the result,the sample container was packed in a ball and then placed on a gyrate platform to be scanned. Two step motors which rotate in different speed and direction drive the ball rotate.
利用球体随机旋转性好的特点 ,将包装样品的容器装入球内并放在样品旋转台中 ,在两台速度不同、方向垂直的步进电机带动下 ,球体在旋转台上随机转动 ,实现对包装容器内的样品进行连续随机扫描 ,以达到减小由于包装容器内样品的非均匀性对测量结果的影响。
2.Grain roller rotate speed is 9. 33 r·min-1 and transporting auger rotate speed is 23. 2 r·min-1, fan type is 4-72-11No2. 8A.
排粮辊转速为9.33 r·min-1,排粮搅龙转速为23.2 r·min-1,冷却离心通风机型号4-72-11No2.8A。
3.We obtain that the three O+{2-} ions above Ni+{2+} rotate 0.603° toward axis while the three O+{2-} ions below Ni+{2+} rotate 0.598°toward it.
获得了Ni2 +离子上方最近邻的三个O2 - 离子偏向〔1 1 1〕晶轴 0 .60 3°,而Ni2 +离子下方的三个O2 - 离子偏向〔1 1 1〕晶轴 0 .598°.
4.A control method to maximizing the system output, for a small wind energy conversion system composed of a new type of brushless DC generator, is put forward. With the aid of the method, the wind turbine torque vs. rotate speed characters can be indirectly controlled via adjusting the machine electromagnetic torque vs. rotate speed characters,and the wind turbine operation with the optimum tip-speed ratio(TSR) and the maximum power point (MPP) is automatically tracked.
通过对由新型无刷直流发电机构成的小型风力发电系统的分析,提出了一种最大限度获取风能的控制方法,该方法通过控制新型无刷直流发电机的电磁转矩-转速特性间接地控制了风力机的机械转矩-转速特性,使风力机在额定风速以下以最佳尖速比运行,自动跟踪其最大功率点.
5.4. The acoustic noise generated by the rotate point source, UH-1H rotor in hover and AH-l/OLS in forward flight were calculated, and the computed results from several methods were compared with each other and with the experimental data.
4．采用旋转点源、UH-1H悬停旋翼、AH-1/OLS前飞旋翼作为算例，对所采用的各种噪声预测方法进行了比较。
6.If you decide to breathe , the head does rotate along with the body, as if the chin were fixed to the shoulder with a rubber band.
如果你决定呼吸，头随着身体转动，就像下巴和肩膀之间连着一根胶皮带。
7.Using the multiple impulses Horae rotate speed sensor to measure the vehicle speed and nanometer radar to measure the distance of own vehicle to frontal vehicle, and analyzing and judging collected information by AT89C51 which is the control centre of the system. When the following distance is less than the safe distance, the relevant alarm is raised to driver.
本文在安全跟车模型的基础上，提出了系统方案：采用霍尔多脉冲转速传感器测量汽车的速度，毫米波雷达测量两车的距离和相对速度，利用AT89C51作为信息采集单元的控制中心，对各种信息进行分析判断，当行车距离小于报警距离时启动相关的报警单元。
8.A catch with machine and release with electricity quartz speed requlator can convert frequency signals of quartz resonator, through CMOS IC,into narrow pulse signals in positive and negative in-tervval to drive pendular motor and through escapement control train and barrel arbor or working axis to rotate uniformly.
本文介绍的石英机擒电纵调速器是把石英谐振器的振荡频率信号,通过CMOS集成电路转换成正负间隔的窄脉冲信号,用以驱动摆动电机转子摆动,再经过擒纵机构控制轮系及发条轴(或输出工作轴)匀速转动。
9.The Thiobacillus ferrooxidans(T.f) that is fit with pH 1.5 was obtained, when the rotate speed is 150r/min, temperature 30°C, liquid quantum 100ml it has well oxidation rate and the less precipitation.
f菌菌株,在摇床转速150r/min,温度30℃,装液量为100ml的条件下具有较高的氧化活性和产生较少的沉淀物。
10.Learn to coil, turn and rotate the body on the backswing, then uncoil, starting with the knees then the hips, trunk, shoulders and hitting arm.
学习在背后拉拍时盘绕，转而旋身，然后解开盘绕，从膝部开始然后臀部、躯干，肩膀而至打击的手臂。
