In numerous medical applications its principal assets are its reliability, its low sound level and its economical aspect.
在许多医疗应用其主要资产是其可靠性，它的低噪音水平和经济方面。
At ground level, such vibrations-akin to low-frequency sound waves-are very small, only about the size of the vertical motions that produce them.
在地表，这种类似于低频声波的振动非常小，只相当于造成它们的垂直振动的幅度。
The calculated results show that strong vibrating source, low gravitational level and sound medium with large density and small sound speed will enhance the levitation ability.
结果表明，提高声源强度、降低重力水平或者采用密度大声速小的气体介质有利于提高声悬浮能力。
In our country, evading taxes is much more serious because of the less sound tax system, the low level of collecting and management and the light consciousness of paying taxes for the tax payer.
在我国，由于税制不健全、征管水平比较低以及纳税人依法纳税意识淡薄，偷逃税问题更是极为严重，给国家经济秩序和税法体制造成了很大的危害。
Among all the factors that affect listening comprehension, sound and rhythm has the most significant effect on the low-level listeners.
在所有影响低水平学习者听力理解的因素中，语音和韵律呈现最强的显著意义。
Booster compressor noise has the characteristics of wide frequency band, intense low frequency sound and considerably high total sound pressure level.
增压机噪声具有频带宽、低频声强烈，且总声级又相当高的特性。
Conservatively designed, the sound level is very low, making the Spang transformer desirable for indoor applications in commercial buildings.
保守的设计，声音很低，使斯潘变压器理想的商业楼宇的室内应用。
PE insulation— Reduces non-linear dielectric-based distortions for excellent low level detail & superior sound.
聚乙烯绝缘，减少非线性介质为基础的卓越的低层次的细节和卓越的声音扭曲。
It has been verified that the directional characters in near sound field in low and middle frequency bands and the pressure level in far...
计算结果正确预测出近场中低频段的指向性特点和远场声压级水平，与实测谱值有较好的一致性。
This simulator has several advantages, e. g. low frequency, high power, and its transmitting sound level is adjustable, which could meet the engineering demands of kinds of open sea tests.
模拟器具有低频、大功率等优点，并且发射声源级可调，可满足多种海上试验的工程需要。
Sound-level meter by its simple, convenient, the cost is low, the precision higher a series of merits, become one of aircraft noise measurement aspect main metering equipment.
声级计以其简单，方便，成本低，精度高等一系列优点，成为航空器噪音测量方面主要的测量仪器之一。
Sound-level meter by its simple, convenient, the cost is low, the precision higher a series of merits, become one of aircraft noise measurement aspect main metering equipment.
声级计以其简单，方便，成本低，精度高等一系列优点，成为航空器噪音测量方面主要的测量仪器之一。
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