concentric line

In Britain, there is no single line: identity is multilayered, defined in both concentric and overlapping circles.

而在英国是没有单一的分界线的：身份是多层次的，既可以通过相互独立的圈子、也可以通过相互叠加的圈子来定义。

The three channel noncontacting rotary joint is a concentric three coaxial line configuration, which forms three transmission channels.

三信道无接触旋转关节是一个同心三同轴线结构，形成三路传输信道。

A linear rolling guider and imported buffer system guarantees the excellent finish and concentricity.

本设备选用滚珠导轨与进口稳速系统以保证精密的表面光洁度和同心度.

Numerical studies are reported for three-dimensional steady-state natural convective heat transfer in inclined concentric annuli filled with liquid-saturated porous media, with either Dirichlet or Neumann boundary wall condition and both ends being insulated.

本文报道三维稳态、Dirichlet和Neumann两种边值条件下倾斜环形湿饱和多孔介质中自然对流的数值计算和实验检验的结果。

Care must be taken during installation so that the Flow Measurement Device fitting is concentric with the center line of the pipeline in which it is installed.

在安装期间必须小心，使得流量测量装置的中心与所安装的管线中心对齐。