"circular line" is correct and usable in written English.
You can use this phrase to refer to a type of line, path, or route that forms a continuous loop. For example, "The bus route follows a circular line that loops around the city".
Finally, the circular line sound source model is suggested.
The mode shapes for one circular line guide are also drawn.
The results show that, unlike point supports, a circular line guide improves the critical rotational speed effectively.
An analysis of the vibration of a spinning annular plate with grounded circular line guides is presented.
Through theoretical analysis and computational examples, it is shown that this model avoids the singularity of source and obtains the uniform pressure responses on the circular line.
The frequency equation for the spinning plate with grounded circular line guides is obtained, and the effects of guide stiffness and location on the frequency changes are discussed.
The work is composed of horizontal, vertical, and circular lines that define flat shapes of red, blue, and white.
After considering and rejecting several prototypes, Mr. McLaughlin came up with a round emblem showing the continents against circular lines of latitude and vertical lines of longitude, framed by two overlapping olive branches.
The show opens with "Rotary Glass Plates," a precursor of Op Art made by Marcel Duchamp with Man Ray in 1925, in which four blades spin on a shaft to create the illusion of a solid circle decorated with circular lines.
Often, a cylindrical pod is inserted into a circular lined duct to increase its attenuation (or transmission loss), thereby making the flow passage annular and providing an additional absorptive layer on the inner side of this annular passage.
In London they are talking of Crossrail 2 but there are already six RER lines in Paris and the Metropole Grand Paris calls for a massive expansion, including circular lines, as part of an overall urban plan to increase development of local transit-oriented developments (TODs) around the RER stations.
