后来模型进行了削减机身背后的试点，使拟合的“泪滴”天篷，这大大提高知名度的后方。
Later models had a cut-down fuselage behind the pilot which allowed the fitting of a "teardrop" canopy, which greatly improved visibility to the rear.
一些专家指出，信号问题可能源自Wifi天线的缺陷。 iPad的Wifi天线位于机身背后的苹果商标里面。
Some suggest that the problem could be a weak wi-fi antenna, which is located behind the logo on the back of the iPad.
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