Side track or double track
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For the instrument’s duplicate line, is it a “secondary line” or a “duplicate line”? Which one is more appropriate? Hehe, a boring question.
This post was last edited by ylb913 on 2016-6-3 12:18; it’s a side plot. Deputy director, team leader, vice governor… There is a distinction between principal and subordinate positions. Plural, complex... \"plural\" denotes plurality, with no distinction between primary and secondary elements.
This post was last edited by qugd on 2016-6-3 13:39. It depends on where this word is used. Auxiliary lines in a plant generally refer to those that are used as backups or serve auxiliary functions other than the main lines, such as for maintenance or as temporary bypasses. But if there are two pipelines operating in parallel for the same purpose, they can certainly be called double tracks. Such as the Donghuang double-track line for oil transportation, and the Sining-Lanzhou natural gas double-track line. Additionally, in the tank areas of some plants, to accelerate material transfer, two or more parallel pipelines can be used to transport the material simultaneously; this is also referred to as a multiple-line system. Whether it is plural or dual depends on the actual situation. It is most clearly defined in double-track railways, namely two parallel railway lines, with trains moving in separate upward and downward directions.
Then quickly mark it as the best answer.
It’s a secondary route, for auxiliary use in conjunction with others； It is not used in a duplex manner, so it cannot be called a double track.