side line

基本解释

They each judge one side line and one base line.
他们四人各自裁判一条边线或一条端线。
The grocery store has a side line of household appliances.
那家杂货铺兼卖家用电器。
Based on the principle of power balance, the DC-side line resister of a 12-phase synchronous generators-rectifier system is reduced to the corresponding AC-side.
本文根据功率平衡的原则，将十二相发电机整流供电系统直流侧线路电阻折算到相应的交流侧各相绕组。

He moved most of his men into position to attack what he now knew was the weak, right side of the Union line.
Scholars tend to line up on one side or the other.
两个时间都有学者支持。
耶鲁公开课 - 新约课程节选
So if you've ever seen or used an old school typewriter, you might recall that when you're typing something out on an old mechanical typewriter, - when you like hit the char-- when you hit the enter key to move the head back to the left hand side to the next line or you would pull down some lever, it was really a two part process.
如果你们有谁曾经看过或用过老式打字机，可能还记得，当你在,这种老式打字机上打字的时候，当你-,敲入回车键，跳转到,下一行的最左边，或者,拉一下杆，这个需要两步走。
哈佛公开课 - 计算机科学课程节选

Just in case any lawyers might see this as a lucrative side-line career!
FORBES: Dialing for Dollars - SEC Adopts Program to Pay Bounties to Whistleblowers

A sideline is something that you do in addition to your main job in order to earn extra money.
The sidelines are the lines marking the long sides of the playing area, for example, on a football field or tennis court.
If you are on the sidelines in a situation, you do not influence events at all, either because you have chosen not to be involved, or because other people have not involved you.
If someone or something is sidelined, they are made to seem unimportant and not included in what people are doing.