They store the energy mechanically by rotating mass around an axis.
它们通过质量绕轴旋转机械存储能量。
This means an overall reduction of the weight and, above all, a rotation of the rotating mass, and has therefore further increased the reactivity of both wheels.
这也使得总重量进一步减轻。然而，其最重要的意义在于减少了轮组转动惯量，这意味着轮组的转动变化反应更加迅速。
So, for two skaters of the same mass rotating at the same speed, the one with its mass more extended in space will have the greater angular momentum.
因此，对于以相同速度旋转的两个同质量选手来说，肢体在空间中更为外扩的那个选手将具备更大的角动量。
However, it wasn't until 1963 that mathematician Roy Kerr found the solution for a rotating spherical mass.
尽管如此，直到1963年，数学家罗伊·科尔才发现了旋转的球形体的相应方案。
Most of that gas flows inward and adds to the mass of the forming star, but the gas is rotating. The centrifugal force from that prevents some of the gas from reaching the forming star.
大多数气体向里流动，增加正在形成的恒星的质量，但这些气体一直在旋转。
Both Delta Sco and Gamma cas are rapidly rotating stars that are evolving off the main sequence and occasionally flinging mass from their equators.
天蝎座delta和仙后座gamma都是正在远离主星序的快速自转的恒星，并且它们不时地从其赤道区域抛出物质。
When the rotor is rotating around its axis, the centrifugal force is produced because of the uneven mass distribution with respect to the axis.
何转子在围绕其轴线旋转时，由于相对于轴线的质量分布不均匀而产生离心力。
Unbalance mass of rotor is one of the causes resulting in vibration of rotating devices.
转子质量不平衡是造成转动设备振动的主要原因之一。
The tangential internal forces in a rotating rigid thin rod with mass distributed discretely and continuously are discussed.
本文讨论了质量离散分布和连续分布的刚性细杆在转动中切向内力的分布规律。
The influences of monomer mass fraction, DCP mass fraction, reaction temperature and rotating velocity on grafting degree were investigated.
研究了单体质量分数、引发剂质量分数、反应温度和转子转速对接枝聚合物接枝率的影响。
Toys with an end mass greater than 0.02 kg (0.04 lb) shall have cord length less than 50 cm (20 in. ) measured when rotating at 80 r/min.
末端质量大于0.02公斤（0.04磅）的玩具上的绳在以80转每分钟的速度旋转时长度应小于50厘米（20英寸）。
Criterion for gas flow pressure loss is presented for rotating liquid film heat and mass transfer device.
提出了旋转液膜气液传热传质设备的气体压力损失的准则关系式。
The characteristic of mass transfer in absorption of soluble gas is studied in the rotating packed bed.
利用离心传质分离装置—旋转填料床，对易溶气体吸收过程的传质性能进行了实验研究。
The model is used to understand a series of formulae, for example, mean single tooth stiffness, gear pair mesh synthesizing stiffness, effective mass, nature frequency and critical rotating speed.
根据这一振动模型，推导了齿轮副的平均单齿刚度、单对轮齿啮合综合刚度、有效质量、固有频率与临界转速等一系列计算公式。
Based on the cold experimentation on rotating-film tube that principal deaerating component of this deaerator, heat and mass transfer characteristics was analyzed.
对其主要除氧元件起膜管进行了冷态试验研究，根据试验情况分析了其传热传质特点。
Therefore, cross-flow rotating bed with protruded ripple plate packing have many merits of higher mass transfer efficiency, lower pressure drop and better kinetic balance.
多孔波纹板错流旋转床填料具有传质效率高、压降低、动平衡性好等优点。
In the oil cooling system of a high performance helicopter, the low mass flow, high rotating speed and small size axial flow fan design is a key task.
小流量、高转速、小尺寸轴流风扇的设计是高性能直升机滑油冷却系统的关键技术之一。
In rock drilling process with percussion-rotary drill rotating drilling tool bears two toques: dynamic torque which drives drilling tool into rock mass, and resistance torque of rock mass.
前言：在冲击—回转式凿岩机向岩石钻进过程中，旋转中的钻具承受着两种力矩的作用：一是驱动其旋转的动力矩；二是被钻岩石阻止其旋转的阻力矩。
The volumetric mass-transfer coefficient in packing increases with gas flow rate and rotating speed raises. Liquid flow rate and concentration of SO2 in inlet gas influences less on it.
转速和气体流量对旋转床填料层内的体积传质系数影响较大，流体流量和气相中二氧化硫浓度影响不大。
An experimental study of the stator blade wake in a small axial compressor is performed by using a hotwire anemometer (HWA) under different rotating speeds and mass flow conditions.
基于小型轴流压气机实验台，运用热线风速仪(HWA)，对不同转速、流量工况下，静叶排出口尾迹流动特性进行实验研究。
The granule mass distribution will be more uniform when increasing rotating speed or mass flowrate.
提高转速和增大质量流量，都会使颗粒的质量分布均匀。
Two impellers are redesigned using the optimization system. In the whole mass flow ranges at design rotating speed, the efficiency is improved obviously and the pressure ratio keeps nearly unchanged.
采用所研制软件，对两个离心压气机工作轮进行优化设计，优化工作轮达到在压比近似不变的前提下效率有效提高。
The centrifugal force. That is larger far than gravity makes gas-liquid contact turbulently in the rotating bed, which intensifies mass-transfer process and improves mass-transfer efficiency.
它利用旋转产生的远大于重力的离心力，使气液在高度湍流下接触，强化传质过程，提高传质效率。
The centrifugal force. That is larger far than gravity makes gas-liquid contact turbulently in the rotating bed, which intensifies mass-transfer process and improves mass-transfer efficiency.
它利用旋转产生的远大于重力的离心力，使气液在高度湍流下接触，强化传质过程，提高传质效率。
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