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fanning friction factor 通风管摩擦系数
The friction factor has a little effect on bucking critical load. 摩擦系数的改变对临界失稳载荷的影响不大。
Nano-additive of lubricating can decrease friction factor and repair surface abrasion. 纳米润滑添加剂可以降低摩擦系数,对磨损表面具有一定的修复功能。
It shows that with the control over the friction factor, near-net-shape forming of hexagonal bolts can be achieved. 另外成形方案四模拟结果显示，有进行模仁表面粗糙度之控制，可达成六角螺栓近净形成形的目标。
The conditionality between the flow rate and the pipe diameter is discussed when the friction factor is fixed. 文中还分析了在摩擦阻力系数一定的情况下，流量与管径的制约关系。
This paper presents a method of calculating the static sliding friction factor between zigzag slot and pin. 该文给出了求解惯性筒上的曲折槽与销之间的滑动静摩擦系数的一种方法,介绍了引信曲折槽机构。
The equation indicate line relative, based upon this equation will get different friction factor of BPN value. 无论位于跑道左侧区域与右侧区域。
In this paper, the testing data of friction factor between syenitic blocks under static and dynamic conditions are presented.Dynamic tes... 两种条件下的动摩擦系数的变化规律也有明显区别。
The rolling pressure for forming straight tooth bevel gear varies with the feed rate of cavity die,friction factor and inclination of rotary head. 直齿圆锥齿轮摆辗成形的辗压力随摆头倾角、下模进给速度、摩擦系数以及摆辗阶段等因素的变化而变化。
Turbulent transition zone is the main zone of trangportating oil products in pipeline, and its basic friction factor formula is Colebrook formula. 紊流混合摩擦区是成品油管输的基本流区,其摩阻因数的基准公式为科尔布鲁克公式,国标采用十分近似、容易计算的哈兰德公式。
Based on the present data, empirical correlations for the saturated boiling heat transfer coefficient and friction factor are proposed. 由饱和的实验结果求得热传系数与压降的经验公式。
Soft, slippery, strong grip strength, good flexibility, fine performance of ozone proof, hardwearing, oil stain proof. A smaller friction factor Long service life. 该胶圈柔软光滑,握持力好、弹性好、抗臭氧、耐磨性好,摩擦系数波动范围小,使用寿命长。
Under high contact stress condition, the alloy with eute ctoid matrix gives higher friction factor and has better wear resistance than th at with martensite and austenite matrix. 在高接触应力情况下;与马氏体和奥氏体基体的合金相比;共析组织基体的合金具有更大的摩擦系数;其耐磨性也更好.
Through calculating friction factor and operating point of pump or fun of two examples on fluid mechanics, methods using solver and curve-fitting in EXCEL were introduced. 通过对流体力学中沿程阻力系数和泵与风机工作点等问题的求解,介绍了excel单变量求解器和曲线拟合的方法。
This paper presents a method of calculating the static sliding friction factor between zigzag slot and pin.A brief description of the fuse zigzag slot mechanism is given. 摘要该文给出了求解惯性筒上的曲折槽与销之间的滑动静摩擦系数的一种方法，介绍了引信曲折槽机构。
Soft,slippery,strong grip strength,good flexibility,fine performance of ozone proof,hardwearing,oil stain proof. A smaller friction factor Long service life. 该胶圈柔软光滑，握持力好、弹性好、抗臭氧、耐磨性好，摩擦系数波动范围小，使用寿命长。
A mechanical model of conical part stamping process is built under the conditions of considering thickness variation, anisotropy, work-hardening, friction factor and so on. 摘要在综合考虑板厚变化、各向异性、加工硬化及摩擦等因素的情况下，建立了圆锥形件冲压成形过程的力学模型。
The infatuated fan stalked the celebrity. 那位着了迷的崇拜者追踪这位名人。
Therefore the shaped en hanced tube that takes heat transfer factor and friction factor as test relational expressions and water and oil as working media should be developed. 为准确确定物性的影响，应扩大试验介质的范围，应以水和油为工作流体，将试验数据整理为传热因子与摩擦因子的关联式。
She glanced shyly at him from behind her fan. 她羞怯地从她的扇子后面看了他一眼。