Second Generation is mostly used for voice calls and is also used for data but it is very weak in data transmission
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- 大图:2827 × 4241 像素·23.94 cm × 35.91 cm·300dpi·JPG
- 中图:667 × 1000 像素·23.53 cm × 35.28 cm·72dpi·JPG
- 小图:334 × 500 像素·11.78 cm × 17.64 cm·72dpi·JPG