Mechanical vibration - evaluation of machine vibration by measurements on non - rotating parts part 2 : large land - based steam turbine generator sets in excess of 50mw 在非旋转部件上测量和评价机器的机械振动第2部分: 50mw以上陆地安装的大型汽轮发电机组
Comparing with non - rotating abrasive jet , the hole diameter and the volume of rock - breaking are many times larger than the former by use of rotary abrasive jet on the same condition 与非旋转磨料射流相比，同样条件下旋转磨料射流钻孔直径和破岩体积都比前者高出多倍。
With the natural frequency and vibration shape under the condition of non - revolving , the measuring method of the object rotational rate and the formula were obtained 利用已知物体在非旋转状态下的固有频率和振形,求得以等角速度旋转物体的转速量测的方法,并得出计算公式。
An object approaching simple schwarzschild - type ( non - rotating ) black hole ' s center will appear to distant observers as having an increasingly slow descent as the object approaches the event horizon 接近简单的史瓦西类型(非旋转)黑洞中心的物体将会对远距离的观察者当物体接近活动视界时候存在日益增加的慢降落。
Mechanical vibration - evaluation of machine vibration by measurements on non - rotating parts - industrial machines with nominal power above 15 kw and nominal speeds between 120 r min and 15000 r min when measured in situ 机械振动.通过测量非旋转零件对机械振动的评估.现场测量标称功率在15kw以上标称转速在120转分和15000转分之间的工业用机械
Mechanical vibration - evaluation of machine vibration by measurements on non - rotating parts - part 3 : industrial machines with nominal power above 15kw and nominal speeds between 120r min and 15000r min when measured in situ 在非旋转部件上测量和评价机器的机械振动第3部分:额定功率大于15kw额定转速在120r min至15000r min之间的在现场测量的工业机器
We also prove that the radius of a rotating spherically symmetric star , with given constant angular velocity and constant entropy , is uniformly bounded independent of the central density . this is different to the case of the non - rotating star 非常有趣的是，当角速度和熵函数都是常数时，旋转对称星体的半径关于中心密度是一致有界的，这与非旋转星体是截然不同的。
Mechanical vibration - evaluation of machine vibration by measurements on non - rotating parts - land - based steam turbines and generators in excess of 50 mw with normal operating speeds of 1500 r min , 1800 r min , 3000 r min and 3600 r min 机械振动.通过对非旋转部件的测量评定机械振动.标称运行速度为1500r min 1800r min 3000r min和3600r min的50mw以上的地面汽轮机和发电机
2 , the single - phase electrical strict sense , the main winding of the magnetic field is generated directly to the pulse magnetic field rather than straight to rotary magnetic field is not a moment ; namely : supply of electrical equipment not own 2严格意义上的单相电机，其主绕组所产生的磁场是直来直去的脉动磁场而非旋转磁场，是没有启动力矩的即：通电后电机不会自己转动。
1 . the function , characteristics , implement measures and compensation means of as in power system , such as agc , reserve capacity ( spinning reserves , non - spinning reserves , replacement reserves ) , reactive & voltage support , restore & black start , are detailedly introduced 详细地阐述了各种辅助服务： agc 、容量备用(旋转备用、非旋转备用、替代备用) 、无功及电压支持和黑启动在电力系统中的功能、特点、实现方法及其补偿方法。
