In practice ,a rotor weighing about 10 tons and rotating at 3,000 r .p . m . may be so well balanced that the motion ,except for sound ,is just perceptible.
实际上，一根据重约10吨、每分钟3000转的转子可以平衡得非常好，以致除了响声外，人们几乎觉察不出它是在转动。 [分析]此处just =almostnot, hardly 曾误译为“正好觉察得出……”，这样意思就反了
Steele, K. M. , T. N. Ball, and R. Runk, " Listening to Mozart does not enhance backwards digit span performance. " Percept Mot Skills, 1997. 84 (3 Pt 2): p. 1179-84.
听莫札特的音乐并不会增强在数字回朔测验中的表现〉 《知觉技能与运动技能》，1997。84 （第3册第2部分）：1179-84页。
This instrument can measure automatically the oil consumption at the normal rating and the r. p. m. of the supercharger and the diesel, fitting with the corresponding primary meter.
这种装置可以自动测试柴油机在额定状态运行下的油耗率，并配合相应的一次元件能自动测试柴油机和增压器的转速。
Based on P-R equation of state and M-H81 equation of state with high accuracy, detailed calculation and analysis were made by utilizing residual function method.
利用精确度高的P - R状态方程和M -H81状态方程，采用余函数法对制冷剂的比定压热容进行了理论推算和比较分析。
Krehbiel P R. M Brook. R a McCrory an analysis of the charge structure of lightning discharges to ground.
张义军。言穆弘。刘欣生不同地区雷暴电荷结构的模式研究。
Emerging from the covered bridge, it felt as if a giant stereo turntable had been stepped down from 78 r. p. m. to 16 r. p. m.
一走出廊桥，就感觉像是一个巨大的唱片机从每分钟78转的播放速度直接降到了16转。
Tips are positioned in opposite shear Angle, very good chips evacuation. Max r. p. m 20000.
刀头按反向剪切角布局，具有优秀的排屑效果，最大转速为20000转每分钟。
M. P. R. stand; trees of small and big DBH are less than trees of middle DBH in A. R. stand.
低径级个体占的比重极小，而中、高径级个体占的比重极大；
Variable AC drive with independent digital R. P. M. readout for pumps offers precise control of AC motor speed, easily to set and maintain application speed tailored to line speed.
交流变频调马达，数码式泵转速(rpm)显示功能，便于精确控制马转速，易于设定和保持与生产线速同步转速！
In practice, a rotor weighing about 10 tons and rotating at 3, 000 r. P. M. May be so well balanced that the motion, except for sound, is just perceptible.
实际上，一根据重约10吨、每分钟3000转转子可以平衡得非常好，以致除了响声外，人们几乎觉察不出它是在转动。
In practice, a rotor weighing about 10 tons and rotating at 3, 000 r. P. M. May be so well balanced that the motion, except for sound, is just perceptible.
实际上，一根据重约10吨、每分钟3000转转子可以平衡得非常好，以致除了响声外，人们几乎觉察不出它是在转动。
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