For some applications, it is necessary to disconnect a card from the analog back plane.

对于有些应用，则必须从模拟背板断开某个插卡。

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The back section of the plane had broken off.

飞机尾部脱落了。

《牛津词典》

When objects are left at what you think is at rest with no external agency acting on them, they all slide back towards the rear end of the plane.

当物体掉在地上，你认为它们不受外力作用，保持静止时，它们却朝着飞机的尾部滚去。

youdao

You go back to the same x-y plane; here is some vector A.

回到刚才的 x-y 平面上,这是某个矢量 A

耶鲁公开课 - 基础物理课程节选

As Eric Schmidt said, when the back plane of your computer runs more slowly than the network, the computer hollows out and distributes itself across the network.

FORBES: Magazine Article

The airline reversed course, adding back plane availability, allotting more time for flights and crew connections, and starting boarding earlier to build more flexibility into its operations.

WSJ: Believe It or Not, Flying Is Improving

The ExpressJet plane was towed back to the gate, and the Scandinavian Airlines plane taxied back to the gate, where passengers disembarked, New York's WNBC-TV reported.

WSJ: 2 airplanes about to take off clip at NJ airport