My one big exception is my hiking and backpacking gear.

我的一个最大的例外是我的徒步旅行背包装备。

youdao

If the big gear did not engage with the small one, the machine would refuse to work.

如果大齿轮与小齿轮不相啮合的话，机器就不会工作。

youdao

Internal gear pump is the small gear wheel, the big gear for driven wheel, in work big gear with small gear cocurrent rotation.

内啮合齿轮泵中的小齿轮是主动轮，大齿轮为从动轮，在工作时大齿轮随小齿轮同向旋转。

youdao

These folks come in with their big tractor-trailers full of music gear and stage equipment and all that other stuff--this is some thing I didn't learn in the cable business.

FORBES: In My Own Words

It's been an awfully long time now to be out there with no life-saving gear, in big seas and in such temperatures.

BBC: Two missing in storms

Let's get this out the way right here and now: to the best of our knowledge, Apple doesn't really provide pre-release units to accessories partners -- even the big ones -- to help them get their products out the door faster when new gear drops.

ENGADGET: Uniea takes a gamble on iPod nano fatty, preemptively makes case for it