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250mm

250mm

250mm

250mm

1

An 18mm lens can take a very wide photo , while a 250mm lens can get very close to far-off subjects .

一个焦距 18mm 的镜头可以拍摄一张非常宽幅的照片，而一个焦距 250mm 的镜头则可将遥远的物体拉得非常近。

2

Facebook 's 250mm user base is nearing mainstream web portal (see traffic compared to Google and Yahoo ) they're quickly closing the gap .

Facebook 的 250mm 用户端口接近主流门户网站入口（与 Google 和 Yahoo 相比看的速度）他们正在迅速缩小差距。

3

But when the diameter is very big (about 250MM) or high speed grinding, we must balance the wheel .

但是在砂轮直径较大（通常在 250mm ）或在高速磨削时必须进行砂轮平衡。

4

NOT GO plug gauges with cylindrical gauging member over 40 mm up to 250 mm nominal diameter, for use in precision engineering

精密机械用公称直径大于 40 至 250mm 孔用带圆规体的不过端塞规

5

6

GO gauging members over 40 mm up to 250 mm nominal diameter for use in precision engineering

精密机械用公称直径大于 40 至 250mm 的孔用过端塞规体

7

GO plug gauges over 40 mm up to 250 mm nominal diameter for use in precision engineering

精密机械用公直径 40 至 250mm 孔用过端塞规

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