超声波

This paper deals with the process of extracting polysaccharides from Arctium lappa L by ultrasound.

对利用超声波从牛蒡中提取多糖的工艺条件进行了研究。

It is similar to Dr Echt's leadless pacemaker, but it uses electromagnetic induction, rather than ultrasound, to stimulate a small implanted receiver, which in turn stimulates the heart.

他的方法与 Dr Echt 有些类似，但他没有用超声波而是利用电磁感应效应来刺激植入的小型接受器，接受器再刺激心脏。

The article narrates lectotype and installation of two kinds of limit switches in details.

而外贴超声波液位开关也广泛应用于球罐和有压罐等工业场合。

The invention discloses a method for extracting linseed oil, in particular a method for extracting linseed oil assisted by ultrasonic.

本发明公开了一种提取亚麻油的方法，特别是一种超声波辅助提取亚麻油的方法。

The effects of jaundice discoloration and lipemia of various concentrations on enzymatic method for determing serum potassium;2. In the experiment the oat protein was extracted from oat flour with ultrasonic-assisted enzymatic method .

采用超声波辅助酶法从燕麦粉中提取燕麦蛋白，研究了料水比、粉碎度、超声时间、超声功率、超声温度以及酶解pH值、酶解时间、酶解温度、加酶量对燕麦蛋白提取率的影响。

Measuring sound velocity in the air using stationary wave method is discussed in this paper,phase comparison method and Lissajous figure method both could determine the wave length of ultrasonic wave.

1引言在大学物理实验教学中，测量空气中的声速用传统的共鸣管方法和超声波方法。

Companies to adopt international advanced industrial automatic placement machine assembly technology, integrated circuit manufacturing equipment, production of various series of infrared photoelectric switch, proximity switches, inductive, high temperature, capacitive, Hall sensors, safety explosion-proof magnetic switches, Isolation amplifier type, permanent-magnet sensors, analog linear displacement, liquid level sensors, textile weft detection device, wire break detector, hot metal detectors, welding phase sensor, color code, fiber optic, security screens, ultrasonic sensors, gear , speed sensor, pressure, electrode-type coal-bit sensors, rotary encoder, two-way cord running series switch, counter relays, solid state relays, switching power supply, isolation transmitter, welding power rectifier, thyristor modules, etc.

公司采用国际先进工业自动贴片机装配技术，集成化电路制造设备，生产各种系列红外线光电开关，接近开关，电感式、耐高温、电容式、霍尔式传感器，安全防爆磁性开关，放大器分离型、永磁感应器、模拟量线性位移、液位传感器、纺织探纬器、断丝检测器，热金属检测器，电焊相传感器，色标、光纤、安全光幕、超声波传感器，齿轮、速度传感器，压力、电极式煤位传感器，旋转编码器，双向拉绳跑编开关，计数器继电器，固态继电器，开关电源，隔离变送器，焊机电源整流桥、晶闸管模块等产品。

Do not clean malachite in a home ultrasonic cleaner.

不乾净的孔雀石在一个家庭超声波清洗机。

Work theory, measure method of ultrasonic waves flowmeter and its application in salt production is introduced, some questions in selection and application of the flowmeter are pointed out.

介绍了超声波流量计的工作原理，测量方法及其在制盐生产中的应用，并提出了选用时应注意的一些问题。

Vibration processing/molding has been recently developed, in which polymer melt essentially flows or deforms under periodic stress in direct/superposed mechanical oscillation or ultrasonic vibration shear/pressure so that the flow field and some physical processes are varied.

近年来出现了振动加工成型，其实质是在机械振动、超声波的直接作用或叠加在剪切、压力流上，使聚合物熔体在周期性变化的应力下流动和变形，从而改变流场类型、强化流场强度和一些物化过程。振动会影响材料的粘度和松弛行为，所以也会影响分子扩散和剪切速率敏感的共混等过程。

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。