查询词典 ultrasonic frequency

To improve the measuring accuracy and increase the signal-to-noise ratio in ultrasonic detection of concrete damage, a frequency-modulated ultrasound transmission method was firstly developed.

为提高混凝土超声检测的信号噪声比，提高测量精度，研究脉冲压缩调频超声发射的方法。

High Frame Rate Ultrasonic Imaging System Based-on Linear Frequency-Modulated Signal.

基于线性调频信号的高帧率超声成像系统。

Main production and operation of various types of colleges and universities, research institutes, laboratory equipment; as well as second-class, three types of medical equipment and medical hygiene materials and consumption only, medical ultrasonic instruments and related equipment; medical laser equipment; medical high-frequency equipment; physics treatment and rehabilitation equipment; clinical laboratory analytical instruments, etc.; operated by the Company Product variety is complete in specifications, which are sourced sufficient creditworthiness good company has a full range of modern information management.

主要生产和经营各类型高校，研究机构实验室设备；以及二类，三类医疗器械以及医用卫生材料及耗才，医用超声仪器及有关设备；医用激光仪器设备；医用高频仪器设备；物理治疗及康复设备；临床检验分析仪器等；本公司所经营的产品品种规格齐全，货源充足，资信度佳，公司拥有全方位的现代信息化管理。

Echolocation calls are usually ultrasonic ranging in frequency from 20 to 200 kilohertz Hz , whereas human hearing normally tops out at around 20 Hz .

用于回声定位的叫声一般是20－200千赫之间的超声波，而人所能听到的最高频率在20千赫左右。

The invention takes linseeds as the raw material, the solvent is used to extract the linseed oil under the ultrasonic that the frequency is between 20 and 100 kHz and the strength is between 1 and 40W/cm.

本发明以亚麻籽为原料，在频率为20-100kHz，强度为1-40W/cm 2 的超声波下用溶剂提取亚麻油。

I service center in Shenzhen Honghui Packaging Machinery Co., Ltd. in Taizhou service organizations, professional sales and maintenance of packaging, printing machines, which sells models: high-speed vacuum plastic molding machines and related equipment (Flap machine, CD Chuangxia feeder, Blister-sealing machine), high-frequency plastics welding machines, ultrasonic plastic welding machines, Da Baoji, infrared heat shrinkable packaging machines, heat transfer machine, bronzing machines.

我服务中心是深圳宏辉包装机械有限公司在台州的服务机构，专业销售和维修包装、印刷机器，主要销售机型：高速真空吸塑成型机及配套设备（折边机、裁床下料机，吸塑封口机）、高频塑料焊接机、超声波塑料焊接机、打包机、红外线热收缩包装机、热转印机、烫金机等。

The Company was founded in 2005, is a company specializing in the design of \ production console and game peripheral products, computer games peripheral products, switching power supply products and other consumer electronics products; company facilities: Units owned imports more than 10 injection molding machine, high-frequency welding machines, ultrasonic welding machine, etc., can be external to undertake injection and electronic products business, as well as design and manufacture various types of customers exquisite crystal PVC box (for to all types of high-end gifts, electronics, clothing apparel, watches, tobacco, liquor, jewelry and household).

本公司始建于2005年，是一家专业设计\生产游戏机及游戏周边产品、电脑游戏周边产品、开关电源产品及其他消费类电子产品的企业；公司设施齐备：拥有十多台进口注塑机、高周波熔接机、超声波焊塑机等，可对外承接注塑及电子产品加工业务、还可为客户设计及制造各类精美的PVC水晶盒（适用于各类高档礼品、电子、服装服饰、钟表、烟、酒、珠宝及日用品）。

Based on the requirements for control system of shadow mask cleaning machine, this article presents an automatic control system which is composed of C200H programmable controller, Fuji frequency converter made in Japan, OMRON-E5AX temperature regulator, ultrasonic generator , electrostatic precipitator, etc.

针对荫罩清洗机控制系统的要求，介绍了采用 C200H 型可编程序控制器、日本富士变频器、OMRO N－ E5A X温度控制器、超声波发生器、静电除尘等装置组成的适用于实现生产线的自动控制系

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新