查询词典 sound wave

Objective To discuss the curative effect of chronic laryngitis which was treated with ultrashort wave and sound frequency electric current through clinical observation.

目的 通过二者的临床观察对比，探讨音频电和超短波治疗慢性喉炎的疗效。

Yutushan island is the best one,Xiaozhu villa is just like a shining shell in the green ocean of the island. Living there, passengers may hear the wave sound of bamboo leafage, overlook the beauty of the landscape and smell the aroma of woods.

以玉兔岛为最，岛内的晓竹别墅如林海碧波中的珍贝，与山水融为一体，可卧听风梳竹林，坐看雨洗翠叶，远观湖光山色，近闻丝竹清香，让游客们流连往返。

The main reason for his rejection stemmed from the fact that both men could apparently only envision light to be a longitudinal wave, like sound and other mechanical waves in gases and fluids.

最主要的原因，他拒绝的原因是，这两个男人似乎只有寄望轻应纵浪，像声音和其他机械波的气体和液体。

Sound is a mechanical disturbance of a wave nature that propagates through any elastic medium at a speed characteristic of that medium.

声音是一种自然波的机械振动，通过弹性介质传播，速度取决于由该介质的特性。

The HELS method expresses sound field as a series of base functions,which are obtained by the Gram-Schmidt orthonormalization of spherical wave functions.

针对HELS方法重建声场过程中矩阵病态和奇异的问题，提出了采用奇异值分解的方法求解组合系数。此外，提出了采用循环迭代的优化方法确定线性组合的项数。

Tidal currents in Long Island Sound do not exhibit the features of a progressive wave as in Chesapeake Bay.

长岛湾的潮流不象Chesapeake湾的潮流那样显示出前进波的特征。

In this paper a method is presented to verify the instruments for the measurement of sound intensity in a progressive plane wave field.

本文提出一种通过平面行波，直接检定声强仪性能指标的方法。

According to this work, the two-dimensional field distribution of continuous sinusoidal wave vertically or obliquely radiated by a linear array of five monopole sound sources is numerically simulated in terms of the different initial acoustic pressure .

在此基础上，数值模拟了初始声压强弱不同的5个点声源组成的线阵列垂直或斜向辐射的连续正弦波在大气中传播时二维声场的分布情况。

In the last few years, researches the problem of the underwater sail machine's sound have been common, the content of the research is very extensive, including the modeling, method of its solution, frequency curve, the wave's property in spreading, the syntonic frequency and the damp material on such coupling system.

近几年，水下航行器的声振一直是国际上研究的热点，研究的内容非常广泛，其中涉及这类耦合系统的建模、求解方法、频散曲线与传播波性质、外激励下的共振频谱及阻尼材料降噪等。

The ocean internal wave has randomness, and this is considered as one of primary causes to the fluctuations of sound field.

海洋内波具有随机性，这被认为是导致声场起伏的主要原因之一。

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。