3) elliptical groove
椭圆沟道
1.
A basin wheel for grinding the elliptical groove of constant-velocity universal joint was presented.
设计了一种用来磨削等速万向节椭圆沟道的盆状砂轮,因避免了砂轮头部的干涉,其参数优化的有效性和精确性得到了提高,能最大限度地保证加工截面的形状和精度;从模拟椭圆圆弧出发,根据待磨削的椭圆沟道方程进行设计,建立了盆状砂轮加工的数学模型,并对其加工原理进行了理论研究,对其加工误差进行了分析。
2.
At present, the finger-like grinding wheel is widely used to approximately grind elliptical groove in many manufacturers of CVJ, but the theoretical error of this method is large.
目前，生产厂家大多采用指状砂轮近似磨削椭圆沟道，理论误差较大。
4) circular flue
圆形烟道
1.
In view of problems existing in velocity of flow monitoring points collocation in circular flue,using hydrodynamics theory to analyze and optimize,one monitoring point at 0.
针对圆形烟道流速监测点布置存在的问题,用流体力学理论进行分析、优化,在确定采样断面后,在距采样孔0。
5) Circular tunnel
圆形巷道
1.
Based on the radio waves propagation models of circular tunnels and rectangular tunnels,the relation between attenuation and conductivity is analyzed and the concept of conductivity breakpoint is presented.
根据圆形巷道和矩形巷道的电波传播模型,分析了电波衰减率和电导率的关系,并且提出了电导率断点的概念。
补充资料：圆道
【圆道】
（术语）三谛圆融一实之真道也。止观一之一曰：“会不二之圆道。”
（术语）三谛圆融一实之真道也。止观一之一曰：“会不二之圆道。”
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条