The space elevator is exactly what its name says it is: a long cable anchored at one end to the ground and at the other end high in space, protruding from the planet like a spoke in a rotating orange.

顾名思义，太空升降梯是一根很长的电缆固定在地面的一端，另一端高高地延伸到太空中，就像一条从旋转的橙子中伸出的辐条那样伸出地球。

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A rack-and-pinion gear set is enclosed in a metal tube, with each end of the rack protruding from the tube.

整个齿轮齿条式转向器装载金属壳内，其齿条从转向器伸出来与转向摇臂连接。

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The other end of the first conductive member makes contact with the protruding portion.

第一导电构件的另一个端部与该突出部分接触。

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And certainly the camera feels a bit sturdier than the more plastickey model, with a black body and protruding lens that resemble higher-end mirrorless models.

ENGADGET: Canon PowerShot SX500 IS hands-on Hands-on

Not anymore, those two protruding rings provide the locomotion while each end of the egg spins freely of both the rings and that Sony branded trunk.

ENGADGET: Sony Rolly: slowed down and blowed up