Question

求英语高手帮忙翻译超声波测距仪的摘要（不要软件翻译的）翻译好的追加88财富

超声波具有以下几个特点：指向性明确，消耗的能量少，可长距离进行传播，因此，它常常被用来进行距离的测量，超声波测距仪被广泛应用于倒车雷达、水位的探测、一些建筑施工工地和一些工业场所。
本论文首先介绍了超声波测距的原理及MCS-51单片机的工作原理，结合这两个方面，确定超声波测距的设计方案：以AT89C51单片机为核心，555振荡电路产生超声波信号，四位共阳极数码管显示，以及ISD1420芯片组成语音播报电路。并完成了超声波测距仪的硬件与软件设计方案。该测距仪电路设计合理易于实现、电路的工作稳定、检测的速度较快，计算结构简单，可以做到实时控制，并且测量精度也能到达实际的要求。

可直接发送到邮箱，1368234657@qq.com 求英语达人帮助 ，软件翻译的就不要贴了，已经被老师否了—_—
也可以直接贴这，总之希望有达人帮忙，我是英语小菜吖.....

Answer 1

Ultrasonic have the following characteristics: directionality clear, the consumption of energy less, can be spread by long distance, therefore, it is often used to carry out the distance of the measurement, ultrasonic rangefinder is widely used in reverse radar, water level of detection, some construction site and in some industrial site.
This paper firstly introduces the principle of the ultrasonic ranging and MCS-51 single-chip microcomputer principle of work, combined with the two aspects, determine the ultrasonic ranging design scheme: AT89C51, 555 oscillating circuit producing ultrasonic signal, a total of four anode digital pipe display, and ISD1420 chips are introduced chip composition speech broadcast circuit. And completion of the ultrasonic rangefinder hardware and software design. The measurement instrument and is easy to realize the reasonable design, stable and the detection of the circuit of the speed, the calculation of simple structure, can do real-time control, and the measurement precision can also to the actual requirements.

Answer 2

Ultrasonic wave has the following characteristics: point clear, less energy consumption, long distance transmission, therefore, it is often used for distance measurement, ultrasonic range finder is widely used in reversing radar, the detection of the water level, some construction sites and some industrial sites.
This paper first introduces the principle of ultrasonic range measurement and MCS-51monolithic integrated circuit's principle of work, the combination of these two aspects, for ultrasonic distance measurement design: take AT89C51 single chip as the core, the 555 oscillation circuit generating ultrasonic signals, a total of four digital tube display, and ISD1420chip voice broadcast circuit. And completed the ultrasonic rangefinder hardware and software design scheme. The range finder circuit design is reasonable and easy to realize, the stable operation of the circuit, the speed detection, calculation is simple in structure, can achieve real-time control, and measurement accuracy can reach the requirement.

Answer 3

Sound waves have the following characteristics: directionality clear, the consumption of energy less, can be spread by long distance, therefore, it is often used to carry out the distance of the measurement, ultrasonic rangefinder is widely used in reverse radar, water level of detection, some construction site and in some industrial site.
This paper firstly introduces the principle of the ultrasonic ranging and MCS-51 single-chip microcomputer principle of work, combined with the two aspects, determine the ultrasonic ranging design scheme: AT89C51, 555 oscillating circuit producing ultrasonic signal, a total of four anode digital pipe display, and ISD1420 chips are introduced chip composition speech broadcast circuit. And completion of the ultrasonic rangefinder hardware and software design. The measurement instrument and is easy to realize the reasonable design, stable and the detection of the circuit of the speed, the calculation of simple structure, can do real-time control, and the measurement precision can also to the actual requirements.