查询词典 wave-guide

According to piezoelectric equation and vibration theory of quartz crystal, we studied the elastic wave＇s transmission characteristic in a AT-cut thickness-shear-vibration quartz crystal, and the frequency conditions of which quartz crystal resonator formed stationary wave in electrode district.

根据石英晶体的压电方程和晶体振动理论，研究了AT-切石英晶体厚度切变振动模式下振动频率与结构参数间的关系，以及石英晶体谐振器在电极区形成稳衡驻波的频率条件及电极区外波的传播特性。

sound velocity ; temperature ; stationary wave method ; ultrasonic wave

虽然用超声波测声速具有以上优势，但实验数据的精确度在一定程度上受到超声波信号发生器的稳定性、压电陶瓷换能器的效率、周围环境温度等因素的影响。

Lab experiments were conducted in a wind-wave flume to measure the wave steepness distribution.

1999导出的理论分布在零波陡处概率密度不为零的理论缺陷。

Ignore Er is short be like,arrive like the boy " board inch ", ignore Er is to wave wave the straight hair that reachs a waist, and now, people betted enthusiasm to provided feminine charm and the curl with sexy enchanting to come up most again.

忽尔是短到如男孩似的"板寸"，忽尔是飘飘及腰的直发，而现在，人们将热情又投注到了最具女人妩媚与妖娆性感的卷发上来了。

In this paper finite element model was established, transient work condition of wave-proof plate of transportation tank in full load was analyzed in brake condition, the maximum stress map and amplitude diagram in maximal deforming point were plotted. According to the change of the transport medium, the results in variant thickness of wave-proof plate were compared and analyzed.

建立了运输槽罐制动时的有限元模型，并且对制动条件下的满载罐体的防浪板进行了瞬态仿真分析，绘出了制动时防浪板的最大应力图和变形最大点的幅值图，将不同厚度的防浪板按照运输介质的变化得出的不同结果，进行了分析比较。

By simulating the supersonic wave probing data with computer,an in-situ rock stress supersonic wave ellipsoid equation is achieved,the in-situ rockstress is defined thereby.

本文建立了地应力超声波检测的多元非线性计算模型，通过对声波检测参数的计算机模拟，得到地应力声波椭球面方程，从而确定原岩应力状态。

There exist some problems in subsalt seismic exploration of Caspian seashore basin, such as salt doom screening, interference wave development, weak energy of reflected wave, shortage of prior data and pseudo-structures caused by velocity anomaly, etc.

哈萨克斯坦滨里海盆地盐下地震勘探存在盐丘屏蔽、干扰波发育、反射波能量弱、先验资料缺乏以及因速度异常引起的构造假象等问题。

When I directly recognize Suchness or Emptiness, or the wetness of my own being, right here, right now, then I have discovered the ultimate truth of all other waves as well. Emptiness is not a Really Big Wave set apart from little waves, but is the wetness equally present in all waves, high or low, big or small, sacred or profane-which is why Emptiness cannot be used to prefer one wave over another.

从最究竟的角度来看，绝对真理与相对真理并不是分开的两个东西，而是不二的，因为空性并不是从事物分离出来的一个独立的东西，它就是所有事物的真如本性，所有波浪的湿性，而本慧则是对真如本性的觉察或发现，它就是你当下那了了分明的觉知，整个宇宙都是从其中升起的。

After an arbitrary time, the new position of the wave front will be that of a surface tangent to these secondary wave lets.

介质中波动传播到的各点都可以看作发射子波的波源，而在其后的任意时刻，这些子波的包络就是新的波前，这就是惠更斯原理。

In the same time it puts forward some different water surface wave models and focus on the regular wave model.

它包括三维地形建模和三维水面波浪模型的建模，水面波浪的模拟则是其中的一种。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。