| 1. | Balance quality and vibration levels for fans
风扇的平衡质量和振动级别 |
| 2. | Level recorders for recording sound level and or vibration level
纪录声级和或振动级用能级记录仪 |
| 3. | Methods of measurement for vibration level
振动级测定方法 |
| 4. | Industrial fans - specifications for balance quality and vibration levels
工业风机.平衡质量和振动等级规范 |
| 5. | It made them higher in frequency and closer to the creator ' s energy vibration level
它令他们进入更高的频率和与创造能量的振动水平更为接近。 |
| 6. | By using of effective mobility power flow method , vibration level and radiated power level of a element cylindrical shell are studied
利用有效导纳功率流法研究了基本圆柱壳体的表面振级和声辐射功率级。 |
| 7. | Building noise control system , hearing protection device , industrial noise control system , sound vibration level meter , transportation noise control , vibration detector balancing system
建筑噪音控制系统、听觉保护装置、工业噪音控制系统、声音 |
| 8. | Building noise control system , hearing protection device , industrial noise control system , sound vibration level meter , transportation noise control , vibration detector & balancing system
建筑噪音控制系统、听觉保护装置、工业噪音控制系统、声音 |
| 9. | This means that ergonomic criteria such as easy handling , positive guidance , low noise or an acceptable hand ? arm vibration level take priticular target
这意味着像易操控，可靠的导向，低噪音和可以接受的振动水平等人体工程学原则应得到优先考虑，从而达到特殊的目标。 |
| 10. | Different virtual balancing schemes with different balancing planes and different test weights are simulated by a computer to minimize the vibration level of the rotor
提出了若干种降低系统振动的平衡方案，并分别对平衡结果进行了有限元数值仿真，以寻找最优的平衡方案。 |
