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- average sound level 平均声级
- day-night average sound level 昼夜平均(噪)声级
- Risk for hearing damage depends on sound level and exposure time," a statement said. 一项报告表示，听力损害的风险取决于音量和暴露时间。
- The influence of network noise can be eliminated by time average method. 利用时间平均方法消除了网络噪声的影响。
- SLOW:The time response of 1 second specified in sound level meter standards, used to facilitate visual averaging of relatively steady signals. 缓慢：反应的时间一秒指明声级计标准，用于促进视觉平均的相对稳定的信号。
- FAST:The time response of 125 milliseconds specified in sound level meter standards, used to more accurately follow rapidly fluctuating signals. 快：反应时间125毫秒指明声级计标准，使用更多准确地贯彻急剧波动信号。
- Data is average: Data (arrowy value of a quantity) take when scanning every time average. 数据平均：数据(矢量值）在每次扫描时取平均。
- Normalizes sound levels of DVD. 6. 标准化 DVD 的声音等级。
- Time Average of Bilinears. Energy Flow in Plane Waves. Circular and Elliptic Polarization. Phase and Group Velocities. Dispersion. 双线性之均时。平面波之能量流。圆形及椭圆形极化。相速度与群速度。色散。
- It treats the weighted average sound velocity in different mediums as the average sound velocity in the structure,thus the natural frequency of the structure is calculated. 以声波在各层介质中传播时波速的加权平均值作为构筑物的平均声波波速，计算出结构自振频率。
- As the reducing calculation of the flood called"7.25"type,the time average reservoir inflow hydrograph of Saba Reservoir isrotton. 还原计算“7.;25”洪水后，得到了卅把水库时段平均入库流量过程线，经修匀后得到的入库流量过程线，接近实际情况。
- Variation of time average velocity and Reynolds stress before and after planting eichhornia crassipe in the watercourse is analyzed based on laboratory experiments. 通过室内试验。分析了在河道种植凤眼莲前后水流时均流速和雷诺应力的变化。
- For continuous monitoring of noise, sound level monitors are installed on site for round-the-clock measurement. 为了不断监察噪音水平,数码港地盘内会装设音量监测器,廿四小时进行测量。
- The result shows that during a fast flexion the short time average angular speed is nearly constant, but the instantaneous speed appears to be a fluctuation wave. 模拟结果表明，在快速屈曲过程中，食指短时平均角速度近似为匀速，瞬时角速度呈现阻尼振荡形式。
- If the volume level is too high, the speaker protection circuit activates, and the sound level drops suddenly. 如果音量电平太高,扬声器保护电路即起作用而突然地减小声音。
- Test results show that the eichhornia crassipe has influences on the time average velocity and Reynolds stress, and different cropping patterns have different influences. 试验结果表明，凤眼莲对各向时均流速和雷诺应力的分布影响明显，且不同种植方式的影响程度也不同。
- Added a new 'Sound Levels' option under sound options. 在声效选项里增加了新的声音等级选项。
- The characteristics of time average pressure of skimming flow in stepped spillway are studied through experiments, and the law of occurrence and transformation are discussed. 通过模型试验 ,对台阶式溢洪道滑行水流的时均压强特性进行了研究 ,探讨了台阶上时均压强的产生和变化规律。
- Place the purchase order and follow up the implementation of the P/O. Keep the inventory at the sound level. 签发采购订单，跟踪订单的执行，将库存控制在合理的水平。
- Have set up the relation equation of porosity pervious concrete and its average sound absorption coefficient . This equation can evaluate the sound-absorbing ability of different porosity pervious concrete pavement. 经过对不同孔隙率透水性混凝土吸声系数的研究,建立了透水性混凝土孔隙率与平均吸声系数的关系方程,该方程可用于评估透水性混凝土铺装吸声降噪能力。
