The lag distance of abutment pressure behind working face increases but the convergence coefficient of vertical stress doesn 't change obviously with the increase of mining height .
分层开采与综放开采 工作面滞后支承压力变化规律是,随着采高的增大,工作面滞后支承力的距离加大,垂直应力集中 系数差别不大。
SYSTEM The working point can be defined by analyzing thermal coefficient of tantalum nitride resistors .
对电阻温度 系数(TCR)的分析可确定溅射系统的 工作点。
In this paper it researched the periodic and quasi-periodic photonic crystal structure fabricated by interference method with a single prism from theory analyzed the working property of polymer electro-optic modulator and also measured the electro-optic coefficient of some kind of polymer material from experiment .
本文理论研究了单棱镜全息干涉法制作周期和准周期光子晶体结构,理论分析了聚合物电光调制器的 工作特性,实验上测量了某种聚合物材料的线性电光 系数。
In addition a working formula which fits the traction coefficient of synthetic lubricant versus slide-roll ratio curve has also been devised .
此外,本文还根据研究结果提出了一种适用于航空高速滚动轴承动力学分析的牵引力 系数 计算公式。
Scheming out the calculate programme of the gear 's tooth shape coefficient on the ground of the calculate formula and working out the over-short tooth shape coefficient finally making these data tabled .
利用齿形系数计算公式设计出计算程序,并 计算出超短齿的齿形 系数,最终将这些数据编制成表。
On the basis of the original model the paper takes the expectation working years into account and adds a new definition - expectation working years coefficient . Making use of the data of 1995 the paper gives a demonstration analysis and compares the different results .
在原有模型的基础上,考虑了预期工作年限,引入了预期 工作年限 系数,并利用1995年抽样调查的 劳动人口数据进行实证分析,比较了模型更改前后所得的结论。
In order to enhance the engaging efficiency and load capacity the optimization model of minimum working pressure angle and minimum modification coefficient are built with the help of mechanical optimization method and the solve method of optimization model is developed on the basis of software LINGO .
为了提高啮合效率和齿轮的承载能力,本文应用机械优化方法建立了最小 啮合角和最小变位 系数的优化模型,在优化软件LINGO平台上实现了优化模型求解。
The influence of the working fluid pressure and the structure of ejecting nozzle on the outlet temperature ejecting coefficient and heating efficiency of the ejecting-mixing heater were analyzed .
对多喷嘴引射混合式加热器的加热性能进行了试验研究,分析了 工作流体压力和引射孔结构对引射混合式加热器的出口温度、引射 系数以及加热效率的影响。
Relationship of Design Reference Period Design Working Life and Important Coefficient
设计基准期、设计 工作寿命及重要性 系数间的关系
The methods are to use the data of wellhead working pressure and displacement from field detection for calculating the dynamic changes of skin coefficient during acidizing so as to real-time monitor and control the quality of acidizing .
该方法可利用现场监测的井口 施工压力和排量数据计算酸化过程中表皮 系数的动态变化,实时监测与控制酸化施工质量。
In this paper we present a new control rule for the fuzzy controller and the technique of intelligent on-line self-optimization for working coefficient and give some results of the emulation for an intelligent regulator on computer .
本文提出一种新的Fuzzy控制规则和智能型 工作 参数在线自寻优技术,最后给出一类智能型Fuzzy调节器的计算机仿真实验结果。
The arithmetic of one unit linearity return can obtain standard working curve of sample liquid and pertinency coefficient was calculated to estimate standard working curve 's pertinency .
应用一元线性回归方法求得特定溶液标准 工作曲线,计算曲线的相关 系数判断标准工作曲线的相关性。
When the working speed was lower the coefficient of variation in the same rows was higher .
机具 行走速度越低,行内一致性变异 系数越大。
Under above conditions the paper has analysed the relationship between the working temperature of semi-conductor device high quality coefficient of semi-conductor material .
在保证上述条件下,本文分析了最佳工作电流和半导体致冷器的 工作温度,半导体材料的优 值 系数等 参数之间的关系。
Analog computations of the stable and dynamic working conditions stable coefficient non-even degree stable governing rate transient governing rate and transition time was carried out . It is shown that this method can be used for studying the governing performance for tank engine .
对该坦克发动机调速系统的稳态与动态 工况和调速器稳定 系数、不均匀度、稳定调速率、瞬时调速率、过渡时间等参数进行了模拟计算,显示这种方法可以用于坦克发动机调速性能的研究。
A procedure of assessing the reliability of pressure vessels by Failure Assessment Diagram ( FAD ) and calculating the working safety coefficient is proposed .
提出可利用破坏评定图评定容器工作的可靠性,计算容器的 工作安全 系数或可靠度。
The thermal boundary conditions of membrane water wall are mainly comprised of the radiation heat flux at the fireside the temperature of the working steam-water-mixtures and the convective heat transfer coefficient in the water wall tubes .
膜式水冷壁的传热边界条件主要包括水冷壁 向火侧辐射热流分布、水冷壁管内汽水介质温度及管内的对流换热 系数。
Based on the tunnel transmission tests on both working faces in Liangjia mine the absorpting coefficient β of electromagnetic wave in coal seam with soft coal roof and floor is found ;
通过对梁家煤矿两个 工作面的坑透试验研究,获得了三软煤层的电磁波吸收 系数β;
Increasing the pressure of working fluid is helpful for the eject coefficient and lift-pressure capability .
提高 工作流体压力有助于提高喷射器的喷射 系数及升压性能。
This paper has a statistics analysis with the water inrush coefficient from the mined lower-group coal mining working face and puts forward the limit of the water inrush coefficient in Yanzhou coal mine area .
统计分析已开采下组煤 工作面的突水系数,提出了兖州矿区突水 系数界线。
Having presented various factors affecting yarn material coefficient values the paper elaborates here on the working principles of material coefficient auto-correcting system on electronic yarn cleaner as well as the causes and countermeasures for the malfunction of error adjustment of the system .
电子清纱器中材料 系数自动修正系统的 工作原理和出现调偏故障的原因;以及如何正常发挥该系统作用所采取的改进措施。
The adaptive control theory is applied in analyzing the working principle of wheel braking and an ABS based on road surface coefficient is designed .
运用自寻最优控制理论;进行了基于路面附着 系数的汽车 防抱死制动系统设计。
The article gives rated working coefficient of pump after turning introduces combined running situation and running result of pump after turning at each station and also puts forward some study alternatives .
给出了车削后泵的额定 工作 参数,介绍了车削后各站库泵的运行组合情况及运行效果,并提出了几种研究方案。
The results show that this test system can run on different seasons ′ working conditions and get high-temperature hot water with the highest coefficient of performance ( COP ) and water flux in summer ;
实验结果表明:该系统在不同季节 工况下均可正常运行,且均能制取出较高温度的热水,但在夏季工况运行时的性能 系数和水流量均最高;
But it is no ideal way to choose or design the bush material and the bearing structure under various working condition to make bearing have high loading capacity and low friction coefficient .
如何选择和设计水 润滑轴承的材料、结构,并使之在各种 工况下具有良好的 工作性能,目前尚无满意的方法。
The results indicate that all the three coatings have a working durability of about 30 minutes with a low friction coefficient and a low wear rate which greatly improved anti - scoring ability .
结果表明:这三种涂层都具有接近30min的 使用寿命,具有较低的摩擦 系数和磨损率,提高了抗咬合能力。
Fresh catalyst samples were used as standards to minimize the matrix effect in determination and the established working curves showed good linearity without the need of coefficient corrections .
以新鲜催化剂为基准配制标准样品,减少了基体效应的影响,所建立的 工作曲线,线性很好,不需要进行 系数校正;
The operational principles of this device the calculation method and steps of the magnetic circuit the magnetic field partition of working air gap and the calculating of the magnetic circuit with magnetic leakage coefficient method are introduced .
介绍其工作原理、磁路的计算方法、步骤,以及对 工作气隙进行磁场划分,用漏磁 系数法计算磁路。
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[电] 工作系数