查询词典 sound wave

Installation methods: direct use glue to bond the peak wave sound acoustic panel to the wall or skeletons and other objection need to install sound-absorbing panels objects together.

安装方法：直接用胶水将波峰吸音海绵与墙体或龙骨架及其它需要安装吸音板物体粘合在一起。

The leading products of the company is PDM1、3KW full solid state broadcasting transmitters, DAM10、25、50、100KW digital circulate modulate medium wave broadcasting transmitters, M2W10、50、100KW digital circulate medium wave broadcasting transmitters, 100W、300W、1、3、5KW full solid state frequency modulation dimensional sound broadcasting transmitters.

公司的主导产品为PDM1KW、3KW全固态广播发射机，DAM10、25、50、100KW数字循环调制中波广播发射机，M2W10、50、100KW数字幅相调制中波广播发射机，100W、300W、1、3、5KW全固态调频立体声广播发射机、远程监控系统以及发射机辅助产品等。

The lead plane both can show lively wave filmstrip and can broadcast gentle beautiful music or a little natural sound, for instance , sea wave , forest brook in rain, heartbeat sound having mother more.

主机既可以放映活波的幻灯片也可以播放柔美的乐曲或一些自然声音，比如海浪、雨中的森林小溪，更有妈妈的心跳声音。

Measuring sound velocity in the air using stationary wave method is discussed in this paper,phase comparison method and Lissajous figure method both could determine the wave length of ultrasonic wave.

1引言在大学物理实验教学中，测量空气中的声速用传统的共鸣管方法和超声波方法。

To bring the charm of Debussy's music, people often think of the piano song "Moonlight" It's a transparent floating slowly down the soft light;"Night in Granada," which is slightly lost in the guitar and pizzicato sound of distant ring sound board decorated by the Spanish style;"water reflection" in the reverse position to carry out the chords to the music mode constitutes a symbol of water ripple, ripple the surface, the dynamics of continuous proliferation; symphonic sketch "spray games" are short motive , the phrase cheerful, bright colors and sound, the playing of the background chatter String outlined noisy waves, wave jumping, laughing water, sunlight flashing screen play.

提起德彪西音乐的魅力，人们常常会想起钢琴曲《月光》那缓缓向下漂浮的透明的柔和光芒；《格拉纳达之夜》中稍现即逝的吉他拨奏与远方响起的响板声所点缀的西班牙情调；《水中倒影》中反向进行的和弦对位构成的音乐模式象征水波荡漾、涟漪泛起，不断扩散的动态；交响素描《浪花游戏》则以短小动机、欢快的乐句，色彩明朗的和声，弦乐颤奏的背景勾勒出波涛喧闹、浪花跳跃、水珠欢笑、阳光闪烁的嬉戏画面。

Based on wave analysis method, the characteristics of vibration wave propagation in typical hull structure were analyzed in consideration of wave type conversion and impedance variation in non-homogeneous structure, and the formula of sound transmission loss during incidence of plane bending wave was deduced.

以波动理论为基础，根据不均质结构中波型转换、阻抗特性，系统地分析了典型船舶结构中振动波的传递特性，推导并给出了平面弯曲波入射时的隔声量公式。

On the basis of investigating the sound field of a plane piston transducer and the relations between sound field and radiation force, by settling four plane piston transducers driven at the same frequency at each corner of a regular triangular pyramid with their sound-beam axes crossing at the center of the pyramid, this technique uses ultrasonic wave synthetic theory to acquire a three-dimensional ultrasonic standing wave field. The micro-component can be captured, transported, released in the range of space by adjusting the phase of the transducers.

在研究单个圆形平面活塞换能器声场分布以及声场和辐射力关系的基础上，将以相同频率驱动的4个平面活塞换能器呈正四面体放置，利用声波合成原理获得三维超声驻波场，通过调整各个换能器发射信号相位之间的关系实现对微构件在空间范围内的俘获、移动、释放等操纵。

On the basis of shock wave characteristic of the supersonic projectile and the detailed analysis of measured datas,a method of decomposing and reconstructing the trajectory shock wave signal and muzzle blast wave signal is proposed and the characteristic parameters for positioning sound source and calculating trajectory vector with regular tetrahedron detection array are extracted.

根据空气动力学原理，在阐述超音速弹丸的弹道波特性的基础上，通过详细分析实测的声信号，提出了弹道波信号和枪口冲击波信号的小波分解和重构方法，提取了利用正四面体探测基阵进行声源定位和弹道矢量计算的特征参数，获得了满意的实验结果。

It occurs with any type of wave, including sound waves, water waves, electromagnetic waves such as light and radio waves, and matter displaying wave-like properties according to the wave杙 article duality.

衍射发生在任何形式的波上，包括声波，水波，电波以及光波，表现出来的波浪形的特性都遵从波粒二象性。

It shows that, because of HOMW, the sound wave in expansion chamber is not in plane form; HOMW can decrease the capability of muffler; and the positions of inlet and outlet are important to the performance of mufflers.

结果表明，由于高次波的存在，消声器内部不一定是平面波；高次波对消声器性能有一定影响，能使某些频段的消声量下降，甚至失效；适当选择进出口管位置能抑制某几次高次波的出现，扩展消声器的有效频率。

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。