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- second critical speed 第二临界转速
- The critical speed of one turbopump rotor on elastic support was computed by FEMQZ. 计算分析了某涡轮泵转子在弹性支承下的临界转速。
- When the speed is more than the critical speed,logarithmic value of the permeation ratio inc... 当共混转速超过临界转速后,溶剂渗透率的对数值随转速线性增加。
- The influences of impeller types, baffle configurations and gas sparger on critical speed of floating particle in an agitated vessel were investigated. 探讨了搅拌桨型、挡板和气体分布器等结构因素及气体流量、颗粒质量分数等工艺因素对下沉颗粒三相体系临界搅拌转速的影响。
- The differential quadrature method was employed to analyze the natural frequencies and critical speed of the plate under in-plane loading. 分析轴向运动速度、板材料刚度及长宽比对板横向振动固有频率及临界速度的影响。
- The result shows that the spindle structure is more safe and suitable after optimizing,with less weight,better rigidness and higher critical speed. 分析结果表明,采用优化的主轴参数不但降低了主轴自重而且提高了主轴的刚度和临界转速,使主轴在结构方面更加合理、安全。
- According to the dynamical characteristic of the vibrated fluidized bed, the first and second fluidization stages and the first and second critical fluidization velocities were put forward. 根据振动流化床床层动力学特性,提出了第一、第二流化段,第一、第二临界流化速度的概念。
- But a motor-car has more momentum, and the chances are that it would keep going at the critical speed and influence the driver long enough to make him lose control altogether. 汽车动力更大，它可能继续以这种危险的速度前进，时间长到足够使司机受到影响并丧失自控能力。
- It is presented that there is a critical speed which will make the trend of dynamic response change when the train passes through the transition section. 同时提出随行车速度的提高,必存在一个临界车速使得列车在通过路桥过渡段时,其动响应(动应力、动应变、动位移、振动加速度等)变化总趋势发生改变。
- When running normally, a high-speed rotor system must pass through critical speed domain, it may resonate and vibrate intensively because of lopsided mass. 摘要高速转子系统在正常工作过程中必须通过临界转速，此时由于不平衡质量的作用，转子系统会产生共振，导致强烈的振动。
- Investigation shows that the wheel(flange)/rail lubricating can effectively increase critical speed of three-piece bogie and prevent vehicle derailment on straight track. 研究表明,轮(缘)轨润滑能有效提高三大件式转向架的临界速度,从而防止相应车辆在直线段的脱轨。
- The critical speed of different-speed mixer shafts is obtained by using the finite method, which is compared with calculating results of theoretical formulae. 摘要采用有限元法计算差速搅拌捏合机搅拌轴的临界转速，并与理论公式的计算结果作了比较。
- On this test rig, by changing its speed, the speed ratio and the position of gears, the mass unbalance response, eigenfrequency and the critical speed are investigated. 在该实验台上，研究了转速、速比及齿轮位置变化对系统的不平衡响应、固有频率及临界转速的影响。
- The second criticism of Dr Wright's and Dr Muller-Landau’s view questions their interpretation of the link between a country's population and its rate of deforestation. 对莱特博士和马勒-兰道博士观点的第二个批评，是质疑他们对农村人口与森林采伐速度联系的解释。
- This paper is directed against the reality problem that it is very difficult to measure the critical speed of the shaft system in a large scale hydrogenerator unit in operating. 针对大型水轮发电机组轴系临界转速难以实际测定的现实问题，从理论分析的角度出发，抓住水力机组轴系结构的基本特点，提出采用较为简单的模拟结构，试验研究水力机组轴系固有频率及其振型特征。
- The critical speed which causes sympathetic vibration is gained by solution of excited frequency so that the resonance vibration of system can be avoided effectively. 通过对激振频率的求解，得到引起链传动系统共振的临界转速，从而有效地避开共振。
- An analysis related to various kinds of soil cutting by earth auger,this paper puts forward that running speed of frill should be faster than critical speed so as to increase the efficiency of drill. 通过分析长螺旋钻机在切削各类土质时，钻具的角速度与土块运动机理关系，提出确定钻具临界的方法，而工程施工中钻杆的实际转速应大于临界转速，以提高钻机的工作效率。
- He singled and went to second on a passed ball. 他击出一垒打，再因对方漏接而跑上二垒。
- The runner went to second base on a wild pitch. 一记瞎设让跑垒员跑上了第二垒。
- The Critical Speed can be obtained by calculating, or from "Allowable Speeds" nomogram provided in our catalog. 临界速度可以通过计算获得，或者通过样本中的允许速度获得。
