超声波的

This paper studies a microprocessor-based SCM ultrasonic range finder.

本文主要研究了一种基于单片机微处理器的超声波测距仪。

This paper studies a microprocessorbased SCM ultrasonic range finder.

本文主要研究了一种基于单片机微处理器的超声波测距仪。

The mechanism of the change of reactivity after activation was discussed.

结果表明，超声波作用后微晶纤维素的晶型没有发生改变。

Ultrasonic Ranging in social life have been widely used as vehicles for reversing radar.

超声波测距在社会生活中已经有广泛的应用如汽车倒车雷达等。

The first supersonic flight (670 mph) was made in California by Charles Yeagar in his Bell XI rocket plane.

在加利福尼亚，查尔斯·叶戈用他的贝尔6号火箭飞机进行了第一次超声波飞行。

Ranging in many methods, ranging pulse ultrasonic method only measured in the measurement points and the round-trip time between the target and achieve a simple, this system uses this approach.

在许多测距方法中，脉冲测距法只需要测量超声波在测量点与目标间的往返时间，实现简单，因此本系统采用了这种方法。

They remove them with a special instrument or an ultrasonic scaler.

他们用一种特殊的器具或超声波洁牙器来除去牙垢和牙石。

Founded in the December,2006, Including dental Supersonic Scaler, dental X-Ray and the others Dental equipment.

创联世纪科技发展有限公司是一家从事牙科仪器周边元器件的专业供应商，成立于2006年12月，现有超声波洁牙机、高频X光牙片机等口腔设备散件。

Equipped with the leading apparatus from other countries, we also offer one package service including ultrasonic cutting, cut folding, laser cutting and serging, etc.

是一家专业生产商标织唛，商标织带，布标，印唛，洗水唛，织印，织章，织绣，吊牌，吊粒，服装辅料，鞋类商标等系列产品，配有超声波切、剪折、激光切割、包边等一条龙服务的商标织造公司。

Services: Production of hot air reflow soldering machine, SMT placement machine manually, feeding racks, manual printing units, steel nets, hand-dip tin furnace, rosin foam, and ultrasonic cleaning machine, shear pin machine, Grinding, production lines, industrial ovens, various types of metal bending processing, non-standard equipment, custom-made, agents of various solder paste, glue and other accessories.

服务范围：生产热风回流焊接机、SMT手动贴片机、喂料架、手动印刷台、钢网、手浸锡炉、松香发泡器、超声波清洗机、切脚机、磨刀机、生产线、工业烤箱、各种五金折弯类加工，非标准设备的定做，代理各种锡膏、胶水等辅料。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。