Strata quality factor (Q) and attenuation factor ( β ) especially these of near surface, are studied.
对松辽盆地南部的地层品质因素和地层衰减系数、尤其是近地表的地层品质因素和地层衰减系数进行研究 ,进而研究了野外地震采集的激发和接受等各个因素。
Simulation results show that better performance with smaller quality factor(Q) and boarder source moving range,and all these conclusions are obtained from viewpoints of the field uniformity and the probability density function(PDF).
利用格林函数法求解电振子激励下源搅拌混响室二维模型中的电场强度,并据此从场均匀性和统计特性的角度分析了2种因素对源搅拌混响室性能的影响,即腔体品质因素的降低和激励元移动范围的扩大能改善混响室性能。
Owing to the demand of oil and gas exploration and engineering prospecting,the research on acoustic attenuation of rocks is very active and quality factor Q is an important research field.
品质因素Q是一个重要的研究领域。
In this article,from the most basic physics principle,the function of the piezoelectric transformer performance Vs three basic factors(mechanical quality factor,electromechanical coupling factor as well as electric quality factor) are established.
该文从最基本的物理学原理出发,把压电变压器的性能归结为3个基本因子的函数,即机械品质因素、机电耦合因素以及电学品质因素。
The research shows that, without taking any additional measures for bandwidth expansion, the value of mechanical quality factor Q_(m) can be lowered and their bandwidth by geometric parameter optimization alone.
研究结果表明,在没有采用其它频带展宽方法的前提下,通过优化几何参数,可以降低换能器的机械品质因素Qm,从而增大带宽。
The relationships of PbO excess with the properties of an new modified PbTiO 3 ceramics with large anisotropy were investigated, the performances including the electromechanical coupling factors, mechanical quality factor, dielectric loss and so on were studied.
研究了一种新型的具有大各向异性的改性PbTiO3 陶瓷材料的性能随着材料制备中铅过量的变化而变化的关系 ,其中包括材料的机电耦合系数、机械品质因素、介电损耗等 。
In this article,from the most basic physics principle,the function of the piezoelectric transformer performance Vs three basic factors(mechanical quality factor,electromechanical coupling factor as well as electric quality factor) are established.
该文从最基本的物理学原理出发,把压电变压器的性能归结为3个基本因子的函数,即机械品质因素、机电耦合因素以及电学品质因素。
An Approximate Calculation on Quality Factors of the Quartz Crystal Oscillator
石英晶体振荡器品质因素的近似计算
On the Role of Quality Factors in Einstein s Scientific and Creative Activities;
论品质因素在爱因斯坦科学创造活动中的作用
Study on the Quality Factor and Processing Technology about Roasted in Sheep;
影响烤羊排的品质因素及加工技术研究
Influence Mechanism and Processing Engineering Research for Buckwheat Bread Quality Factor;
影响荞麦面包品质因素的机理及加工技术研究
Soil and fertilizer factors affect the quality of the orange greatly.
土壤和施肥因素对柑桔品质影响较大。
as to the commodity quality requirements, reliaBle performance is the first consideration.
在商品质量中，性能可靠是第一因素。
You see, the damage may be caused by a variety of factors.
你知道，损害产品质量的有各种因素。
Study on the Relevant Factors Influencing the Yield and Quality of Cichorium Intybus L;
影响菊苣产量和品质的相关因素研究
Research on the Influence Factors and Countermeasure of Farm Product Quality Safety;
农产品质量安全影响因素及对策研究
Quality optimization of the multi-factor and multi-index product;
多因素多指标产品的质量优化(英文)
Influencing Factors on Quality Characteristics of Celery Pork Balls
芹菜猪肉丸品质特性影响因素的研究
Dietary Factors on Dairy Cow Milk Production and Quality
奶牛日粮因素对乳产量及品质的影响
Influence Factors of WEDM-HS Machining Quality and Solutions
影响WEDM-HS加工品质的因素及解决措施
Research on the Influencing Factors of Different Private Brand Goods on Perceived Quality;
自有品牌产品影响感知质量因素的实证研究
This paper systematically analyzes the factors of ecological geology influencing the Chinese date quality.
系统分析了影响大枣品质的生态地质因素。
Studies on Idioplasm Resource of Chinese Troditional Medicine Astragalus and on Effects of Environmental Factors on Quality;
中药黄芪种质资源及环境因素对品质的影响
Abstract: Quality of the external purchase equipment is the mai n factor that influence the quality of initiating explosive device.
文摘:火工品用外购器材的质量问题是影响产品质量的重要因素。
Quality of the external purchase equipment is the mai n factor that influence the quality of initiating explosive device.
火工品用外购器材的质量问题是影响产品质量的重要因素。