声波

The signal main-frequency measurement Model, Hou-Yang Model and the new criterion of Umf were based.

在直径分别为100mm和150mm流化床冷模实验装置中，以及φ1000的HDPE中试流化床聚合反应器、φ3500的LLDPE、φ3500的HDPE和φ5000的Bi-mode PE工业流化床聚合反应器装置中，测量了颗粒流态化产生的声波信号。

The agglomerations sizes of fine particles in the fluidized bed are smaller under higher SPL. The sound waves have little effect on the agglomerations when it is under 120dB. But the agglomerations sizes will be dramatically reduced to 180μm from 720μm when the SPL is above 130dB. The umf has a minimum value at an appropriate frequency of sound and a good quality of fluidization can exist in a greater ranges of frequency of sound when the SPL is higher.

当频率高于120Hz，流化床中形成聚团尺寸随着频率的增加而增大，最小流化速度也随着频率的增加而增大，当频率低于120Hz，流化床中形成聚团尺寸随着频率的减小而增大，最小流化速度也随着频率的减小而增大；料层越高，声波的衰减越大，超细颗粒的流化效果越差，最小流化速度越大。

It can be described as an undulation of sound pressures, an orchestration of sound waves audiences are yet to experience.

可以说它是一种声音压力的波动，一种听众尚未体验过的声波配乐。2005年的《多路传送》就是他近期作品的一个范例。

It can be described as an undulation of sound pressures, an orchestration of sound waves audiences are yet to experience. Dataplex of 2005 is and example of one of his recent works.

可以说它是一种声音压力的波动，一种听众尚未体验过的声波配乐。2005年的《多路传送》就是他近期作品的一个范例。

The product decodes the sounds of mosquitoes to attract mosquitoes to the unit within 80 square meters.

该产品破译了蚊子的声波信息，可以吸引方圆80米以内的蚊子。

According to certain research , the spread velocity of sound waves has nothing to do with the speed of the ripples.

研究表明，声波在同一介质中的传播速度和波源的速度无关。

It is hard to discern the change of sound oscillation with our hearing in general experiment for mensurating velocity of sound.

在一般测定声速的实验中，利用听觉很难辨别声波干涉形成的振动加强和减弱的变化。

If we sit still and talk we are, from the physical point of view, creating sound waves, which spread from their resting source with the velocity of sound in air.

如果我们静坐着说起话来，从物理学的观点来说，我们在创造声波，这种波从静止的声源以空气中的声速传播。

The scale of such investigations varies from the global to the very local (such as the measurement of the velocity of sound in the wall of a borehole).

这些研究的规模可以从全球性的到很局部性的(如井眼中井壁的声波速度测量)。

The sound waves created by the interaction of your vocal cords and tongue are structured by the content of your message.

根据你要传达信息的不同，你的声带和舌头产生的声波也不同。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。