超声波的

In our country ultrasound is becoming a weapon of mass destruction.

在我们的国家，超声波成为破坏性别平衡的工具。

This paper introduces a system based on MCU 51 ultrasonic pulse reflection altimetry systems, therefore we choose to 80C51 or 89C51 altimeter on the objects.

摘 要：本文介绍了一种基于51系统单片机的脉冲反射式超声波测高系统，所以我们选用80C51或89C51进行对物体的测高。

The method was established to analysis the oxine-copper with ion pair of antiphase HPLC and Ultrasonic-assisted solvent extraction methods.

建立了喹啉铜原药的超声波辅助溶剂提取-反相离子对高效液相色谱法的分析方法。

The result of IR spectral analysis indicated that the categories of radicals found in cell walls after either ultrasonic method or cell autolysis are almost the same.

红外光谱分析结果表明，与Nocardia原菌相比，超声波法破碎和自溶法破碎后制得的Nocardia细胞壁所含有的基团类别基本相同。

Methods Using ultrasonic technology, flavonoids were extracted form Glycyrrhiza by orthogonal experiment, and their bacteriostatic activity were studied by cylinder plate method.

方法利用超声波技术通过正交试验提取甘草中的黄酮，杯碟法对其进行抗菌活性的研究。

In this paper,we design a set of the ultrasonic positioning system based on model tank battel system,and realize the real-time tracking of model tanks.

本文在模型坦克对战系统的基础上，设计出一套室内超声波定位系统，实现对模型坦克的实时跟踪定位。

They also did ultrasound and other tests to measure blood vessel function and the thickness of the artery wall.

他们还进行了超声波和其他测试，衡量血管的作用和动脉血管的厚度。

One-pot three component condensation reactions of aromatic aldehydes, malononitrile, and barbituric acid were described for the preparation of a series of pyrano[2,3-d]pyrimidine derivatives under ultrasonic irradiation in aqueous media without catalyst.

报道了在超声波辐射下，水相中无催化剂下通过芳香醛与丙二腈、巴比妥酸的一锅反应，合成了一系列吡喃并[2，3-d]嘧啶衍生物。

Our experimental results have proven that the circuits can drive the USM to work well convenitently and stably.

实验结果表明，研制的电路性能稳定，能方便地驱动超声波马达，并良好运转。

The main PD detection methods were introduced in the paper,UHF method and acoustic method.

介绍了运行中GIS 局部放电检测所常用的两种方法：超高频发和超声波法。

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。