active sound box

Through theoretical analysis and actual assemble,the 15w active sound box,which adapts to computers,MP3,can be made.

根据高职电子信息类专业实践教学的要求,介绍了有源音箱制作实训项目,论述了电路的工作原理、元器件选取以及PCB设计、箱体设计与加工等内容,通过理论分析和实际组装、调试,制作出适合与电脑、MP3兼容工作的15 W有源音箱。

The special PP material for sound box is developed with polyolefin elastomer(POE) and ethylene/propylene/diene copolymer( EPDM) as the tougheners, polypropylene grafted with maleic anhydride ( PP-g-MAH) as the compatibilizer and talcum as the inorganic fillers.

以聚烯烃弹性体(POE)和(乙烯/丙烯/二烯)共聚物(EPDM)为增韧剂,马来酸酐接枝聚丙烯(PP-g-MAH)为增容剂,滑石粉为无机填科研制音箱用聚丙烯(PP)专用料。

The influence to woof performance of sound box from the variety of the box parameters is large.

音箱的箱体参数对音箱的低频特性影响很大,为了减小音箱设计与制作过程中的盲目性,有必要研制与开发一套相关的软件对音箱的低音特性进行仿真。

This paper presents the way of the structure and analogy circuitry of a sound box working in inverse-phase type and the usages of the assistant soft for sound box in low frequency design.

介绍了倒相式音箱类比成集中参数等效电路的方法和音箱低频特性计算机辅助设计软件及其使用方法。

The Facture of Active Sound Box Based on TDA2030A;

基于TDA2030A的有源音箱制作

The sound box is trapezoid in shape, and decorated with ethnic motifs.

木制音箱呈梯形上面饰有具有民族色彩图案，

Resource Mailbox Scan completed. No unmarked resource mailboxes found.

已完成资源邮箱扫描。没有发现未标记的资源邮箱。

Container-monitoring-system of Merging Active RFID and WSN

融合有源RFID和WSN的集装箱监测系统

Transfer case noisy in all drive modes.

动力分导齿轮箱在所有驱动模式中发出噪音。

It is resultful to apply the sound attenuated enclosure to controlling undesired sound.

静音箱在噪声控制中有良好的降噪效果。

Sometimes the air chamber above the soil sample is connected to a regulated pressure source.

有时，土壤试样上面的空气箱与调压源相连接。

On the front of the cabinet are on-off switches for sample-feed pump.

在箱子的正面有试样进料泵的电源开关。

Container Management System Based on Sensor Network and Active RFID

基于传感器网络和有源RFID的集装箱管理系统

Listen to the tape then answer this question. Does Mr. Hall get his case back?

听录音，然后回答问题。霍尔先生有没有要回他的提箱？

She reached along the counter and flipped on a small radio, one with only two dials and tan cloth covering the speakers.

她伸手到台面上打开收音机,那收音机只有两个频道,音箱上盖着一块棕色布。

Review On In Course Of Tone, Introduction Of Modern Musical Acoustics;

探乐音之源起 寓无形于有形——读《音的历程——现代音乐声学导论》有感

An instrument with wire strings of graduated lengths stretched over a sound box, played by striking with two padded hammers or by plucking.

洋琴音箱上绷有长度渐进的弦线的乐器，拨奏或用小木槌敲击演奏

If you have a perforated screen, center this speaker both horizontally and vertically behind the screen.

如果你有透声的屏幕，在屏幕的后方水平和垂直方向居中这个音箱。

So" lǜ" can have several different readings.

王渊源：“绿”有几个不同的读音。

The Origin and Pronunciation Evolvement of the Word "bu you" in Yunnan Dialect;

云南方言词“不有”的来源及语音演变

The Potentialities of Developing Local Music Course of Western China;

西部音乐地方课程资源开发大有可为

The speaker stood under the table.

音箱放在桌子下面。