超声波

A method was developed for the extraction and determination of oleanolic acid from Chinese quince.

本文应用回流提取法、索式提取法、冷浸提取法和超声波提取法对木瓜中的齐墩果酸进行了分离提取，并采用高效液相色谱法测定其含量。

Her special interest is in the field of small animal clinical radiology and ultrasound.

她主要的兴趣是小动物临床放射线学和超声波。

The experimental results showed that the ultrasonic rangefinder doesn't fit to explore the circular surface of small radius of curvature.

实验结果表明，超声波测距仪不适合曲率半径小的圆弧曲面探测。

Control System is the core component of the development of ultrasonic range finder.

控制系统核心部分就是超声波测距仪的研制。

SCM comprehensive analysis of the probe signal processing, and the ultrasonic range finder function.

各探头的信号经单片机综合分析处理，实现超声波测距仪的各种功能。

Control System is the core component of the development ofultrasonic range finder.

控制系统核心部分就是超声波测距仪的研制。

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。

AT89S51 Microcontroller based on ultrasonic range finder design literature, to those in need.

详细说明：基于AT89S51单片机超声波测距仪器设计的文献，给有需要的人。

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。

Ultrasonic range finder is used to measure car in a closed space, the specific coordinates.

超声波测距仪用来测量小车在封闭的场地里的具体坐标。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。