B side

基本解釋

If this is A side, so that is B side, which is clear?
如果這是A面，那么這樣就是B面，哪一面更清楚。
He knew it was released in 1954. He knew the B side of the single.
他記得這首歌是在1954年發(fā)行的，記得這首歌在唱片的B面，他知道所有關(guān)于這首歌的來龍去脈。
During the six-hour, 46-minute spacewalk, Good and fellow NASA astronaut Garrett Reisman completed the installation of the final two new batteries for the B side of the port 6 solar array.
經(jīng)過了6小時46分的太空行走，古德和他的同事NASA航天員迦勒特.瑞斯曼完成了為6號端口太陽能電池組B側(cè)安裝最后2個新電池的任務(wù)。

It's kind of like , where you had side A,side B and you just flipped it over when you wanted to change your mood so to speak.
So I took this to the other side and I divided through by 2b and the b here cancels.
通過移項和通分成2b,就可以消去b了
耶魯公開課 - 博弈論課程節(jié)選

The Beatles changed the name of their company that oversaw their business interests to Apple in 1967, and released most of their later albums on the Apple Records label, with its distinctive labeling--a green-skinned Apple on the A-side and the halved apple for the B-side.
FORBES: Magazine Article