共聚产率随超声波强度、反应时间、反应环境温度和表面活性剂用量的增加而提高。
The yields of copolymer increase respectively with the rise of ultrasonic intensity, reaction time , temperature and the amount of an anion surfactant (SDS).
使用超声波冲击焊趾来提高焊接接头及结构的疲劳强度,是一种国际上刚刚出现的新方法。
It's a new method to increase fatigue strength of welded joints and structure by peening toe of weld with ultrasonic peening equipment.
利用超声波方法检测水泥混凝土路面的力学参数、抗折强度和厚度。
The mechanical coefficients, resisting-folded strength and thickness of cement concrete pavement are determined by ultrasonic method.
对一批不同龄期的掺粉煤灰或矿渣的钢纤维混凝土试件进行了超声波检测及抗压强度试验。
The steel fiber concrete with fly ash and slag of different ages by ultrasonic detection and compression strength were tested.
对试验结果进行了回归分析,建立了钢纤维混凝土超声波声速与抗压强度之间的关系曲线。
The relationship between ultrasonic velocity and compression strength was set up by regression analysis of the testing data.
使用超声波冲击焊趾来提高焊接接头及结构的疲劳强度,是国际上刚刚出现的一种新方法。
It is a new method to increasing fatigue strength of welded joints and structure by peening welded toes with ultrasonic peening equipment.
调节超声波,可改变光脉冲的强度和周期。
Modulating the ultrasonic wave, intensity and period of the light pulse will change.
同时通过对比试验研究了低强度的超声波对膜污染防治作用及其在膜-生物活性炭反应器中对生物过程的强化作用。
And the effects of ultrasonic irradiation at low intensity in BACMR on the enhancement of biological action and membrane pollution control were investigated through parallel experiments.
采用超声波化学镀工艺在人造金刚石表面获得了均匀致密的金属薄膜,提高了金刚石的抗压强度和耐热性。
A uniform and compact metal film was attained on the surface of synthetic diamond by ultrasonic chemical plating. The compress intensity and heat resistance of the synthetic diamond were improved.
结果表明由超声波测试得到的声速值可以方便地估算出混凝土的强度。
The test results indicated that the strength of concrete could be estimated by supersonic velocity values.
试验结果表明,超声波速度、岩样的强度以及破坏形式具有明显的方向性,而平均杨氏模量随方向的变化不很显著。
The experimental result shows that the ultrasonic waves speed, strength and destroy type is different to rock direction, but the aver- age modulus is the same.
虽然酶和超声波的处理会在一定程度上降低纤维粗度和纤维长度,但对纸张的强度影响很小。
Though the treatment of enzyme combined with ultrasonic wave reduced the coarseness and fiber length to some extent, there was little effect on the strength of pulp.
介绍了超声波具传播方向性强、介质振动强度大、在液体中可产生空化现象等特点。
Characteristics of ultrasound, such as strong directional transmission, high vibration intensity in the transmitting medium, and cavitation in liquid medium were introduced.
文中利用自行研制的超声波冲击实验装置,对提高低碳钢焊接接头疲劳强度进行了研究。
In this paper, it was studied to improve the fatigue strength of welded joints and structrures of low carbon steel Q235B by peening the welded toes with ultrasonic equipment.
实验结果表明,厚度增加会使层合板内部的超声波c扫描损伤面积增加,但并不会明显影响其剩余压缩强度。
It was found that the damage area got by ultrasonic C-scan method will increase with the thickness increase, but the residual compressive strength will not be influenced obviously.
本文总结了在骨折护理中使用低强度脉冲超声波的根据。
This article will review the evidence for the use of low-intensity pulsed ultrasound in fracture care.
要用超声波确定应力强度因子,只能采用透出试件前(或后)表面的第一个纵波信号。
So, if ultrasonic wave is used to determine SIF, only the first one passing through the front (or rear) surface of the specimen can be used.
超声波能够使水产生紊流,使紫外线强度照射更加均匀、无死角,杀菌更高效。
Ultrasonic can make water produce turbulence, make the ultraviolet radiation intensity is more uniform, no dead Angle, more efficient sterilization.
这些高强度的超声波(20 ~ 65khz)不在人类和大部分家养宠物的听觉范围内,但能被害虫听到。
These high intensity ultrasonic sound waves (20 ~ 65khz) are out of the range of hearing of humans are most household pets, but pests.
介绍一种利用充电电动螺丝批改制的轻便手持式超声波探头移动器,可辅助检测人员进行钢板对接焊缝的超声波检测工作,从而提高检测工作效率、减轻工作强度。
A moving utensil for portable ultrasonic probe which is made of chargeable electronic screwdriver is introduced, and it can be used to assist detector to detect steel butt-joint welding seam.
超声波清洗机设有辊道式进料装置,降低劳动强度。
Set up the hand raceway back-basket devices, reduce labor intensity.
总之,理论研究及室内实验均表明在合理的作用强度和频率下,利用超声波降低原油粘度是可行的。
In a word, theoretical studies and lab experiments have both showed that it is possible to reduce the viscosity of crude oil when the ultrasound has a reasonable intensity and frequency.
超声波清洗机设滚道式进出料装置,降低劳动强度。
Raceway-based feed-in and feed-out device, reduce labor intensity.
研究结果表明:超声波在熔体中产生空化作用,对7055铝合金熔体作超声处理能细化晶粒,提高强度,并能大幅度提高其塑性。
The results show that casting after ultrasonic treatment can obtain finer grain with homogeneous microstructure and higher strength meanwhile acquire strongly improved plasticity of the alloy.
治疗组采用推拿为主结合低强度脉冲超声波治疗疲劳性胫痛,对照组采用调制中频常规理疗。
The treatment group applied Tuina massage combined with LIPUS on tibialis anterior muscle and tibia. Those in the control group received physiotherapy of modulated medium frequency.
治疗组采用推拿为主结合低强度脉冲超声波治疗疲劳性胫痛,对照组采用调制中频常规理疗。
The treatment group applied Tuina massage combined with LIPUS on tibialis anterior muscle and tibia. Those in the control group received physiotherapy of modulated medium frequency.
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