On the basis of the partial wave theory, the surface effective permittivity method was introduced to analyze the excitation characteristics of surface acoustic wave (SAW) and acoustic plate mode wave (APM), and the experiments verified the effectivity of the theoretical study.
以部分波理论为基础,引入表面有效介电常数方法来对比研究压电基片上激发的声表面波和声板波,并通过实验证明了理论分析方法的有效性。
The inspection method of ultrasonic plate wave for the metal plates
GB/T8651-1988金属板材超声板波探伤方法
outdoor digital noise display
户外数字式声量显示板
The hunter pulled the trigger and stopped the deer in his tracks.
猎人扣板机，鹿应声而倒。
sound-absorbing perforated asbestos cement panel
吸声带孔石棉水泥板
"Cock crow(s), thatched inn, moon; human trace(s), wood(en)bridge, frost."
鸡声茅店月，人迹板桥霜。
Comparison of Sound Absorption Properties between Sympodial Bamboo Flooring and Moso Bamboo Flooring
丛生竹地板与毛竹地板吸声性能比较
He fell on the floor with an awful whomp.
他摔在地板上发出一声可怕的撞击声。
Research on Basic Theories of the Radiation Sound Quality from Plate Strucutres;
板结构辐射声的声品质基础理论研究
Analysis of Acoustic Properties of Sound Transmission Composite Plate Structure
透声复合船体板结构的声学性能分析
The angry shouts of the delegates could be heard with painful clarity: "Chou, you old swine! Come out, you old thief!"
工人代表在门外面大声嚷骂了。 “狗老板贼老板
The application of automatic ultrasonic flaw detection for steel plate in the medium plate plant of chongqing steel group
钢板超声波自动探伤在重钢中板厂的应用
an expressionless face, voice, tone, etc
呆板的面孔、 冷冰冰的声音、 平淡的声调等
Sound Insulation Properties of Layered Damping Stiffened Panels Acoustic Shield;
阻尼复合加筋板隔声罩的隔声性能研究
The Vibration & Acoustic Radiation and Noise Muffling Characteristics of Plate Structures;
板结构的振动声辐射及其隔声性能研究
Rudimentary Researches on the Acoustic Characteristics of Microperforated Panel Absorbers with Alterable Air-Cavity;
不等腔微穿孔板组合吸声结构的吸声特性初探
The Study on Sound Insulation and Sound Absorption Capacity of Metal Heat Preservation Sandwich Panels
金属面保温夹芯板的隔声吸声性能的研究
Acoustics Software Development of Micro-perforated Panel Absorber Based on AML
基于AML的微穿孔板吸声体的声学软件开发
Inversion of Elastic Modulus of Thin Plate Using Acoustic Pressure Transmitting Coefficient Spectrum
应用超声声压透射系数谱反演薄板的弹性模量