查询词典 acoustic

High-speed digital frequency synthesizers and acoustic pulse pressure device information table, principle, the device note.

高速数字频率综合器及声表脉压器件资料，原理介绍，器件说明。

Depending on the acoustic emission during the hydraulic pressure test,it could be determined whether the defect was originally formed or not with the help of Kaiser effect principle.

近年来，声发射技术在各方面都得到了很大发展，包括声发射的源机理和波的传播研究以及检测系统的研制和应用范围的扩展等[2]。

Sound wave has both scalar quantity and vector field, while traditional acoustic pressure sensor system merely ma...

声波兼有标量场和矢量场，传统的声压水听器系统仅利用了其声压信息。

Using matlab, the acoustic reflected pressure from a submerged elastic/piezoelectric bi-laminated plate is calculated.

本文采用matlab 软件，对水下弹性/压电双层板的声波反射进行了数值研究。

We get and analysis the data of the reverberation, noise and acoustic pressure level of the Conference Hall and Lecture Hall in some northern university in measurement.

实测和分析了北方某大学的甲报告厅和乙会议厅的混响时间、景噪声、场级等数据。

The extent of the harmonic response coming from the tissue is dependent on the MI settings (= mechanical index, which is correlated to the acoustic pressure).

来源于组织的谐波信号的强度由MI的设置决定（=机械指数，和声压相关）。

Reverberation modeling and simulation are great value for the research of acoustic homing system of torpedo.

混响的建模与仿真对于研究鱼雷声自导系统具有重要意义。

The main clue of the paper is that in view of the danger and rapidness, taking practicable signal processing technology, sending torpedo information to acoustic countermeasure system rapidly and accurately.

本文研究工作的主线是针对鱼雷攻击的危险性和快速性，采取切实可行的信号处理方法，快速准确地向水面舰艇水声对抗系统提供鱼雷报警信息。

For active acoustic homing torpedo, reverberation is the main interfere.

混响是主动声自导鱼雷的主要干扰，混响的建模与仿真对于研究鱼雷声自导系统具有重要意义。

To predict the geometric operational range of an acoustic homing torpedo under different hydrological condition, this paper presents a method to determine geometric operational range by using sound ray density.

为预报声自导鱼雷在不同水文条件下的几何作用距离，提出了运用声线密度判定几何作用距离的方法。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐