It was according to the methods he used in calculating the PI value and the sphere volume that posterity was able to know and use the circle more accurately.
这是根据他使用的方法在计算圆周率的价值和数量方面的后代能够知道和使用的圆圈更准确。
Based on the basic features of dynamic gas emission during boring process, a theoretical model for calculating the dynamic volume of gas emission from bore hole is set up.
基于钻孔过程中瓦斯动态涌出的基本特点,建立了钻孔瓦斯动态涌出量的理论计算模型。
The article analyzes specifically dust control for effectiveness reasonableness and introduces calculating methods of blow and exhaust wind volume of Push pull ventilation device.
对其烟尘控制的有效性和合理性作了具体分析,同时介绍了吹吸式通风装置送、排风量的计算方法。
The mathematical pattern for accurately calculating volume of tooth and areas of each section which is dispersed along the length of tooth is established.
建立了精确计算直齿锥齿轮轮体积以及沿齿长方向各截面面积的数学模型;
According to the equal speed sampling principle, we obtain the calculating formula for the sampling volume in standard state.
根据等速采样原理,探讨在标准状态下,采样体积的计算公式。
We conclude that FCM is an accurate, reliable and very useful method for calculating mitral regurgitation stroke volume.
认为血流会聚法是一种准确、可靠且实用的二尖瓣返流量计算方法。
A numerical approach of calculating volume of the general shape block has been described.
给出了一个计算一般形状块体体积的数值方法。
A method of calculating condensate equivalent gas volume is shown in this paper.
本文提供了计算凝析油当量气体体积的方法。
A method is also presented for calculating the side area and volume of critical rocks with arbitrary pentahedron as example.
以任意五面体为例,介绍了危石侧面积、体积的计算方法。
Results Various acquisition counts influenced calculating thyroid volume.
结果不同采集计数会影响甲状腺体积的计算。
This paper gives a brief description of the method for calculating three dimensional viscous flow field of a steam turbine blade row with the use of a finite volume time marching method.
介绍了用有限体积时间推进法进行以蒸汽为介质的蒸汽透平叶片排全三元粘性流场的计算方法。
Then an explicit method for calculating FRP volume of RC, PC girder strengthened with externally boned FRP is present.
在此基础上,给出RC、PC构件外贴FRP加固求解FRP用量的显式计算方法。
Based on SAXS theory and fractal theory, we obtain the calculating method and calculating formulas of the pore size, pore volume percentage and the fractal of pore surface in PAN - based carbon fiber.
基于小角X射线散射理论,利用逐级切线法和材料分形理论中的散射强度法,分别计算PAN基炭纤维内微孔大小、体积分数及微孔表面分形维数。
Based on the movable bed test and study, the regulation scheme for Batangwei reach was set forth and the formula for calculating siltation volume of the reach was derived.
文章采用多边界潮汐控制数据采集系统成功地模拟了多边界非恒定潮汐流问题,通过动床试验研究提出了八塘尾河段的整治方案,并给出了预测本河段回淤量的计算式。
From the transfer dynamics in perpendicular gas-liquid phase flow point of view, this paper put forward a calculating method of air volume in deep-well process design.
从垂直气液两相流运行动力学角度,提出深井工艺设计中空气量的计算方法。
The methods such as method for determining rhe volume of production, method for calculating own revenue, method for making relation between quality and economic effect are given.
介绍邮电部门实行经济核算时的若干方法。诸如,计算产品量的方法,计算自有收入的方法,以及处理质量与经济效益联系的方法等。
Rotary piston pump is a volume type vacuum pump and is applied widely, but there has been no method for exactly calculating dynamic balance of rotary piston up to the present.
滑阀真空泵是一种容积式真空泵,在各工业领域广泛应用。但该泵的旋转活塞平衡长期以来无精确计算方法。
This paper probes into the calculating method of coal bed gas volume and the partition of its volume degrees, and puts forward the standard of the partition of coal bed gas volume.
文章探讨了煤层气量计算的方法及量级别的划分,提出了煤层气量划分的标准。
The volume variation of ductile iron occurring in eutectic solidification was ascertained by calculating the specific volume of each component phase of the iron.
用计算各组成相比容的办法计算了球墨铸铁共晶转变时的体积变化。
The key point of the paper is to discuss the method of third generation of coherent data volume based on calculating eigenwert.
本文重点讨论了基于特征值计算的第三代相干体方法。
The finite volume method is adopted on each layer. The high efficiency of this multigrid algorithm has been verified by calculating flows around a multielement airfoil.
采用四重网格,在每一层网格上采用有限体积法进行计算。
However, for the purposes of calculating volume discounts or rebates, if any, purchases made by Affiliates will count towards ITW's aggregate purchases.
然而,为了计算总额折扣或者返利为目的的,关联机构的采购将计入ITW总的采购数量。
The formula of calculating the volume of pinion cutter was derived. Taking the volume and life as objective function, the optimum design of designing parameters of pinion cutter was explored.
本文推导出了外插齿刀的体积计算公式,并以其体积最小和刀具寿命最大作为优化的目标函数,对其设计参数的优化设计进行了探讨。
The author studies a method of calculating design flood and flood control capacity of a reservior according to the characteristics of residual flood volume.
本文研究了一种依据剩余洪量特性推求水库设计洪水和防洪库容的方法。
Moreover, the application of angle-count cruising to calculating the stand volume, standard stock number, stand weight and stock number per unit area, is discussed.
本文探讨了角规测树法在测算毛竹林分蓄积量、标准株数、林分重量及单位面积株数中的应用。
When calculating the amount of fresh air required to dilute smog, mass or volume concentration is introduced into the formula to replace the old smog concentration;
依据稀释烟雾计算隧道需风量时,在公式中应引入烟雾的质量浓度或烟雾的体积浓度,并用其替代公式中的一般烟雾浓度;
Based on the basic features of dynamic gas emission during boring process, a theoretical model for calculating the dynamic volume of gas emission from bore hole is set up.
在全面分析钻井机械的组成、钻进过程的特点和人的特性的基础上,建立钻机钻进过程人机系统可靠性模型。
Based on the basic features of dynamic gas emission during boring process, a theoretical model for calculating the dynamic volume of gas emission from bore hole is set up.
在全面分析钻井机械的组成、钻进过程的特点和人的特性的基础上,建立钻机钻进过程人机系统可靠性模型。
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