查询词典 acoustic wave

Paraxial approximation absorption boundary condition based on acoustic wave equation can obtain better absorption results by increasing paraxial approximation order of Taylor series. However, this kind of operation will increase the complexity of difference computation, and result in instability of computation process.

基于声波波动方程的旁轴近似吸收边界条件可以通过提高泰勒级数展开的旁轴近似阶数获得更好的吸收效果，但这样不仅增加了差分计算的复杂性，同时还导致计算过程不稳定。

ABSTRACT Surface acoustic wave device is an advanced analog signal processing device, is widely used in modern communication and rada...

声表面波器件，是一种先进的模拟信号处理器件，由于其优良性能，在现代通信、雷达等系统中运用广泛。

Surface acoustic wave should be carried out to determine the output surface and the relative depth of pump suction.

应进行声波液面测定，确定产液面与泵吸入口的相对深度。

The acoustic wave device can be removably attached to the rotatable shaft by using one or more connectors.

该声波装置可以使用一个或更多连接器而可移除地附着到旋转轴。

The progress of laser ultrasonics has been discussed especially for the laser-generated surface acoustic wave.

介绍了激光超声领域的研究进展，分析了光致超声过程中，能量从光能到声能的转换，归纳了用激光激发声表面波的机理，讨论了两种主要的模型：热弹模型和融蚀模型。

The liquid density sensors presented in this project are dependent on the Surface Acoustic Wave technics in the fabrication process. Considering the maturity of SAW technics and the easiness of high frequency BAW generation with the IDTs, it is convenient for sensors miniaturization.

本项研究工作提出的微量液体密度传感器在制作上仅需采用成熟的声表面波工艺即可，实现起来比较容易，叉指换能器容易激发较高频率的体声波，便于传感器小型化。

The growth kinetics and the stability of synergistic films of benzotriazole and halide ion were investigated by bulk acoustic wave method.

采用体声波传感技术就卤素离子与铜缓蚀剂——苯骈三氮唑协同成膜的动力学及相应复合膜的稳定性进行了研究。

Another major product line development and marketing touch-screen, professional inquiries, software development and touch inquiries machine, while sales have GTT, ETWO, ONETOUCH brands such as surface acoustic wave screen, as well as ELO, EELY screen such as resistors.

另一条产品线主要开发和销售触摸屏、专业查询软件开发和触摸查询一体机，同时代理销售有GTT、ETWO、ONETOUCH等品牌表面声波屏以及ELO、EELY等电阻屏。

The results shown that, for the typical kind of photonic crystal fibers with hexagonally arrayed circular air holes, the band gap of acoustic wave of XY mode appears only when the air holes' filling rate is greater than certain threshold value, and the upper and lower boundary values of the band gap decrease with the increasing of the air holes' filling rate.

结果表明，对于较为常见的空气孔排列为六角密排结构、空气孔形状为圆形的实芯光子晶体光纤，只有当空气孔的填充率大于一定阈值时才出现较明显的XY模态声波的带隙，并且最低与次低带隙的上下边界均随空气孔的填充率的增大而下降。

It is discovered through the research that there is a better regularity between the acoustic wave traveltime, electrical resistivity of the sandstone and burial depth.

压力封存箱的封隔作用有效地保护了砂岩的次生孔隙，同时在成藏过程中，酸性水对压力封存箱内部砂岩次生孔隙的形成十分有利。

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。