转速

The optimal condition of the methanolysis transesterification was as follows: 50% enzyme based on oil weight;methanol/oil mole ratio 3∶1;shaking speed 150 r/min;added water content 5%;reacting at 50 ℃ for 12 h.

最佳工艺条件为：在正己烷的反应介质中，酶量50%，醇油摩尔比3∶1，反应温度50℃，转速150r/min，添加质量分数5%的水分，反应12 h后产物脂肪酸甲酯得率可达92.3%。

Results showed that AOT reversed micellar systems provided a suitable micro-environment for biodiesel production. The optimal parameters were: the ratio of water and AOT 11, AOT concentration 50 mmol/L, temperature 40℃, pH 7, molar ratio of methano and oil 3, and rotating speed 180 r/min. The transesterification rate reached 90% when a 3-step methanolysis protocol was used.

研究结果表明： AOT/异辛烷反胶束体系为Candida sp.99-125脂肪酶催化提供了较为合适的微环境，在W0为11，表面活性剂浓度为50 mmol/L，温度为40℃，缓冲液pH值为7的AOT/异辛烷反胶束体系中，醇油摩尔比为3∶1，摇床转速为180 r/min，采用12h3次流加1 mol当量的甲醇，单批最高酯转化率可以达到90%。

The engine main circuit have to be gurranteed drawing the torque of electric motor and rotation speed wholly to do regulateing of independence ,But also possess extensive setting range SS7's mould electric locomotive adopts Quan Kongqiao and semi bridge accuseeing series connection to make up the monophase bridge style commutation electric circuit ,The coil power supply is encouraged against the stringtrain by the electric motor the drawing armature to 3 parallels operation ,Still there is an excitation commutation bridge ,He encourages the coil power supply with 3 electric motors drawing together to the series connection ,Moreover has one another accuses the regulating action .

机车主电路必须保证牵引电动机的转矩和转速都可作独立的调节，而且要有宽广的调节范围。SS7型电力机车采用一个全控桥和一个半控桥串联组成单相桥式整流电路，向3台并联工作的牵引电动机电枢与串励绕组供电，还有一个励磁整流桥，向串联在一起的3台牵引电动机他励绕组供电，并具有相控调节作用。可以实现机车无级调速和无级削磁。SS7型电力机车采用再生制动方式，再生制动时，牵引电动机作直流发电机工作，并且将电能馈送回接触网，此时电力机车相当于一个移动的发电站。

Unit operating at the highest speed setting if a multispeed motor is used.

36.4.1所述的容量是指器具在最高转速下工作时完全充满容器的水量。

By changing the connection of stator windings to change the pole number,the Mixed pole-changing simplex winding multispeed asynchronous motor can obtain two kinds or above rotational speeds with one set of winding.

混相变极的单绕组多速异步电动机是利用改变定子绕组的接法，以改变电机的极数，从而使电机用一套绕组获得两种或两种以上转速的异步电动机。

With motoreducer with neumatic turbine at 18.000 RPM Micrometric deep control sharp.

微调控制磨具转速可高达18000RPM。净重25公斤。英文翻译，胜任简体和繁体香港

Rotate speed of 1 hydraulic turbine group measures a principle measurement unit of group rotate speed is like this hydraulic turbine graph 1 place is shown, it is comprised by sensor of 65 micro computer instrument, among them 64 sensor distributing to go up in 4 symmetrical runner shaft, the 65th sensor is in axial center nodical.

该水轮机组转速测量安装如图1所示，它由六十五个微型机械传感器组成，其中六十四个传感器漫衍在对称的四个转轴上，第六十五个传感器在轴的中心交点。

The larger subharmonic component will be introduced into the system after the instability of system periodic motions, the motion of systems will be nonsynchronous precession and the amplitude of alternate stress in the rotor shaft is high. The long-term existence of instability will directly threaten the safe running of the rotor systems. Research on the influence of the change of system parameters on the system dynamical behaviors, the stability of system periodic solutions with the change of system rotational speed and the system motion after instability will have the theoretical and engineering-oriented significance for the long-term safe running of large-scale rotating machinery.

转子系统失稳后会产生较大的低频振动分量，系统运动出现非协调进动，系统转轴中会产生幅值很大的交变应力，转子失稳状态的存在直接影响系统的安全运行，因此研究转子系统自身参数的变化对系统动力稳定性的影响，研究系统周期解随工作转速的变化情况及其失稳后的运动规律，对大型旋转机械的安全稳定运行具有重要的理论意义和工程实用价值。

The reasonable selection about the parameters of radius-length ratio and speed of small-type oilless compressors was given.

通过对小型无十字头压缩机的受力分析和试验研究，阐述了重要结构参数径长比λ对活塞环的密封效果及使用寿命的影响，对小型全无油压缩机的径长比、转速的合理选择进行了分析。

Experimental research on the oilless lubrication compressor;2. The reasonable selection about the parameters of radius-length ratio and speed of small-type oilless compressors was given.

通过对小型无十字头压缩机的受力分析和试验研究，阐述了重要结构参数径长比λ对活塞环的密封效果及使用寿命的影响，对小型全无油压缩机的径长比、转速的合理选择进行了分析。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐