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换向     
相关语句
  commutation
     Study of intelligent SMD-300 multi-groups commutation pulse electroplating power supply
     SMD-300多组换向脉冲电镀电源智能化研究
短句来源
     The air-gap field distribution of PMSM ,which is the basis of the calculation of commutation performance, is studied by analytical method.
     利用解析法分析了永磁起动机电机气隙磁场分布,给出了电枢表面气隙磁密的解析计算方法,据此可进行换向性能的计算。
短句来源
     Controller of Automatic Cooling and Automatic Commutation for Crystal Rotation
     自动降温控制器与晶体转动自动换向控制器
短句来源
     Finite Element Analysis of the Support of Electrical Machinery Commutation Intelligence Pumping Unit
     电机换向智能抽油机支架的有限元分析
短句来源
     Discussion about the method of back-EMF commutation for brushless DC motor
     无刷直流电机反电势换向方法的探讨
短句来源
更多       
  reversing
     Analysis and Countermeasures on B&W 8K45GF Main Engine Reversing Trouble
     B&W8K45GF型主机换向系统故障的分析与处理
短句来源
     GK_(3B) diesel shunting locomotives with hydraulic reversing
     GK_(3B)型液力换向调车内燃机车
短句来源
     Characteristic analysis and structure optimization of reversing valve assembly on SHB-series hydraulic piston pump
     SHB系列水力泵换向机构特性分析与结构优化
短句来源
     Control of Parameters of Four-way Reversing Valve Capacity Characteristic Test-bed
     四通换向阀容量特性实验台参数控制
短句来源
     Research on leakage of reversing valve
     四通换向阀内泄漏分析研究
短句来源
更多       
  direction change
     This paper presents the means to raise propelling motor's power output of a certain torpedo from the view of the reliable direction change, turn speed increase, shaft's mechanical strength, allowable temperature rise and cooling medium on the basis of its structural parameters.
     本文根据某型鱼雷推进电机的结构性能参数,从可靠换向、提高转速、轴的机械强度、容许温升、冷却介质等方面阐述了进一步提高鱼雷推进电机输出功率的途径。
短句来源
     It can not only regulate the moving velocity of the actuator, but also simplify the hydraulic system of the base machine, improve the smoothness of direction change and enhance the operation performance of the base machine.
     它不但能调节执行机构的运动速度,而且可简化整机液压系统,提高换向的平稳性,并改善整机的使用性能。
短句来源
     This paper introduces the harm to the hydraulic system which is caused by the hydraulic impact, analyses the reasons of the hydraulic impact from the aspect of the sudden velocity change of liquid, the stop or direction change of the movement equipments and so on, puts forward the methods of decrease and elimination, and provides the basis for the hydraulic system design.
     介绍液压冲击对液压系统造成的危害,从管内液流速度突变引起的液压冲击,运动部件制动或换向引起的液压冲击等方面分析了产生的原因,提出了减小和排除液压冲击的措施,为液压系统设计提供了依据。
短句来源
     The analysis on the eliminate the soft breakdown which emerges when X axis approaches the inverse direction change in the processing of the digit-controlled machine tool is a very effective method to fix breakdowns in digit-controlled machine-tools.
     对CNC - 4A数控气割机加工过程中 ,在X轴逆向接近换向时出现失步这一软故障过程的分析 ,是数控机床故障分析与排除非常有效的方法
短句来源
     The analysis on the eliminate process of this soft breakdown in the processing of the digit-controlled machine tool which appears when X axis approaches the inverse direction change is a very effective method to fix breakdowns in digit-controlled machine-tools.
     对 CNC—4A数控气割机加工过程中,在 X轴逆向接近换向时出现失步这一故障排除过程的分 析,是数控机床故障分析与排除非常有效的方法。
短句来源
更多       
  changeover
     EQ4012 Series hydraulic changeover transmission boxes
     EQ4012系列液力换向传动箱
短句来源
     The furnace conbined with the regenerative heat recuperating system and the change over combustion system,can preheat the air and gas at the same time to 1 100 ℃,with the fume exhaust temperature of less than 150 ℃,50% energy saving and 30% output increasment and the pure gas from blast furnace may be used in high temperature industrial furnaces.
     该炉将蓄热式热回收和换向式燃烧系统与炉子结合于一体 ,将空气和煤气同时预热到 1 1 0 0℃ ,系统排烟温度低于 1 50℃ ,节能 50 % ,增产 3 0 % ,可以在高温工业炉上烧纯高炉煤气。
短句来源
     The paper presents the technical measures taken to improve 12E390VA type diesel engine by means of changing to usa newly matched VTR354A tubochargers and applying a simplified changeover system,which has further improved engine performance and operating reliability and resulted in a reduction of S.F. C. by 6g/PS.
     本文简述12E39VA 型柴油机通过改配 VTR354A 增压器与简化换向系统等技术改进措施,使发动机性能、可靠性进一步提高,燃油耗率降低6g/PS·h 以上。
短句来源
     Power supply of cyclic(2π) change over electrorefining of gold
     周期(2π)换向金电解电源
短句来源
     Estimation changeover control system of HTA heating furnace
     蓄热式加热炉预估换向控制系统
短句来源
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  commutation
For unbounded operators A, B and C in general, the commutation relation [A, B] =
      
However, a ripple current occurs in the inactive phase due to the diode freewheeling during the non-commutation period in the traditional pulse width modulation (PWM) methods, which aggravates the torque ripples.
      
A new PWM method is proposed in this paper to eliminate the diode freewheeling during the non-commutation period in the inactive phase.
      
An algorithm is designed for computing "throughput" service quality characteristics of circuit-switched re-routing networks with regard for the influence of undetected failures in commutation devices if crankbacking is used for switching.
      
It is shown that an arbitrary grouped p-element permutation can be implemented in a conflict-free way through the commutation of channels on the double p-ary multiring or the double p-ary hypercube.
      
更多          
  reversing
An order-reversing duality map for conjugacy classes in Lusztig's canonical quotient
      
We then show that there is a unique order-reversing duality map No,c → LNo,c that has certain properties analogous to those of the original Lusztig-Spaltenstein duality map.
      
Our research is focused on identifying synthetically occurring chemotherapeutic substances capable of inhibiting, retarding, or reversing the process of multistage carcinogenesis.
      
Reversing this process, i.e., exchanging with K+, returned phosphate metabolism to normal.
      
The total heat flow, modulated heat flow, reversing heat flow, and nonreversing heat flow under heating and cooling schedules are measured.
      
更多          
  direction change
In this paper a new shape similarity measure of linear entities based on the differences of direction change along each line is presented and its effectiveness is illustrated.
      
Matrix Green's function allows us to procure an immediate result for position and direction change of the victim antenna.
      
Correlation dropped by nearly 50% following a direction change of 90° or more, suggesting that accumulation is reduced but not abolished by large changes in movement direction.
      
The subjects reacted as quickly as possible to the direction change.
      
Further, unlike autocorrelation, which generally identifies lags close to the true lag, intra-multiplicity can erroneously identify lags anywhere in the time series and commonly results in a direction change of the correlation (i.e.
      
更多          
  changeover
Using numerical simulation, the parameters of the injected beam were optimized and the conditions for the absence of particle loss upon a changeover into the acceleration mode and subsequent acceleration to the maximum energy were determined.
      
By the example of OAO "Krasnodarekoneft'," the changes that occurred in the corrosion state of an atmospheric tower of a primary oil refining section upon a changeover to more corrosive crude oil are examined.
      
The obtained relationship predicts a changeover from the "square root" law in the charge region where the average distance between ions lis smaller than the ionic-atmosphere thickness 1/κ, to the "cube root" law, at l>amp;gt; 1/κ.
      
Heating samples above ~670 K is shown to result in a changeover of the conduction type from semiconducting (p-type) to metallic.
      
The mentioned changes are associated not only with the acceleration of gold dissolution in the presence of chemisorbed sulfide ions but also with the changeover in the mechanism of this process.
      
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