您要查找的是不是：
- Sound pressure measurement for noise source Identification in enqine 发动机噪声的声压测量与分析
- pressure measuring set 压强测量仪
- Measurement of sound pressure level for sound sign. 海船声号器具的声压级测量。
- Sound Pressure Measurement of Underwater Explosion and Its Effect on Marine Organism 水下爆破的声压测量及其对海洋生物的影响
- The audible sound pressure range is from 0 dB to 120 dB. 听觉范围为0分贝到120分贝。
- At whose blood pressure measuring is the earliest tonometer used? 最早的血压计用于测量谁的血压？
- Ultra-low distortion at extreme sound pressure levels. 超低失真的极端声压级。
- INTRACRANIAL SOUND PRESSURE LEVELS DURING IMPULSSE NOISE EXPOSURE Saljo A. 在噪音刺激下颅内声音压力水平。
- Vapor Pressure Measurement of Supercooled Water. 超冷水水气压观测。
- underwater sound integrated measuring set 水声综合测量仪
- sound pressure measurement 声压测量
- Pressure measuring equipment in safety design S2 as specified in DIN 38030 for compressed air brakes in vehicles. 在安全设计S2中,压力测量装置被DIN38030标准指定用于车辆压缩空气制动。
- The hand-held pressure measuring instrument complies with the electromagnetic compatibility acc. To EN 61326. 手持式压力测量仪满足EN 61326电磁兼容性要求。
- There is a remarkably wide range of frequencies and sound pressure levels over which the human ear can detect. 人类耳朵对声音频率和声压级的感应范围很广。
- A pressure measuring instrument NG 50 with switch contact replaces pressure switch and pressure gauge. 有开关接点的压力测量仪表径50,替代了压力开关和压力表。
- With the increase of the SPL, the nodes of sound pressure move Periodically, and sound radi... 在声源产压级较低时，声辐射压分布几乎处处为零，随着声压级增加，节点处声辐射压幅值增加，颗粒稳定性增强。
- Usually, the problem is how to reduce the sound pressure level, either at source or on the transmission path. 通常噪声问题的解决办法就是在其声源处或是在其传播途中降低其声压水平。
- Differential pressure measuring instruments with magnetic piston and compression spring, Nominal size ND 80, with or without electric contact device. 带有磁性活塞和压缩弹簧的差动式压力测量仪表,标准尺寸表径80,有或没有电接点。
- Air freight and air mail must pass through safety inspection and other safety measures set by the State. 航空货物、航空邮件应当经过安全检查或者对其采取国家规定的其他安全措施。
- The SPL(Sound Pressure Lever) of flow-induced tones limits the required flow speed of aero-acoustic experiment. 为了在气流当中进行噪声测量,传声器上必须加装适当形式的鼻锥以降低传感器自噪声。
