查询词典 ultrasonic wave

Various kinds of hot plasticity melt and receive and deal with with ultrasonic wave and need and add flux, splicer pharmaceutical or other to assisted and sampled by glue one.

超声波焊接是熔接热塑性塑料制品的高科技技术，各种热塑性胶件均可使用超声波熔接处理，而不需加溶剂，粘接剂或其他辅助品。

The advantage of this kind sensor is that the feeble vibration produced by ultrasonic wave on the surface of solid plate transmission can be detected accurately.

这种传感器的特点是能够精确地检测由固体表面传播的超声波产生的微弱振动。

Nano-SiO_2; Nanocomposites ; Epoxy syntactic foam ; Ultrasonic-Wave

纳米SiO2；纳米复合材料；环氧复合泡沫塑料；超声波

Along with the science and technology unceasing development, the survey technology is more and more advanced, from the primitive manual surveying computation to the cyclostrophic wind cup survey technology, to uses modernized again the laser, the ultrasonic wave as well as the infrared and so on each kind of telesthesia technology surveys; At the same time, the survey result is more and more precise.

随着科学技术的不断发展，测量技术越来越先进，由原始的人工测量计算到旋转风杯测量技术，再到采用现代化技术的激光测，超声波以及红外线等各种传感技术来测量；同时，测量的结果越来越精确。

The invention relates to a preparation process for synthesizing polyethylene terephthalate 1, 3- terephthalate catalyst, which comprises adding titanic acid ester, germanium compounds and cobalt compound into liquid dispersed phase of organic solution, wherein the total weight concentration is 4-10%, and preparing the catalyst through mechanical stirring or ultrasonic wave mixed ligand for 10-60 minutes in 0-120 DEG C, wherein the adding content of titanic acid ester, germanium compounds and cobalt compound are respectively 200-500ppm, 50-300ppm and 100-400ppm of reaction monomer mass of terephthalic acid or dimethyl terephthalate.

本发明涉及一种合成聚对苯二甲酸1，3-丙二醇酯催化剂的制备方法，将钛酸酯、锗化合物和钴化合物加入到有机溶剂的液体分散相中，总重量浓度为4～10％，在0-120℃通过机械搅拌或超声波混配10-60min制得；钛酸酯、锗化合物和钴化合物加入量分别是对苯二甲酸或对苯二甲酸二甲酯反应单体质量的200-500ppm、50-300ppm、100-400ppm；用此催化剂制备PTT产品，酯化和缩聚反应时间相对于单独使用钛酸四丁酯缩短了30-60min，产品特性粘数0.70-1.05dL/g，色相b值在2-6之间，切片可用于加工新型合成纤维及工程塑料产品。

There are high diagnosis evidence of breast cancer by ultrasonic wave, but still have limitations.

超声对乳腺癌有较高的诊断价值，但仍有其局限性。

Its principle is on the basis of ultrasonic wave theory; this sensor can adapt various environments.

它是利用超声波原理进行检测的。测量系统具有良好的环境适应能力。

The interaction between the ultrasonic wave and optical fiber sensor is discussed.

讨论了光纤传感器与超声波之间的相互作用关系。

Objective: Evaluating the diagnosis evidence of breast cancer by ultrasonic wave.

目的：评价超声对乳腺癌的诊断价值。

Thus, understanding the propagation chaxacteristics of the ultrasonic wave is essential for successful application of the technique.

因此，正确认识这种检测形式下的超声波传播特性是有效应用该技术的基础。

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。