其它制造商普遍把天线与其它部件一起放置在手机内部，即便那意味着它们的手机体积要更大。
Other manufacturers generally keep the antenna inside with other components, even though that means their phones are bigger.
iPhone 4手机采取了全新设计，其天线设在环绕手机的金属条中，而不是在手机内部。
The iPhone 4 has a new design, with the antenna built into a metal band that surrounds the phone, instead of inside the device.
手机内置天线方向不一，取决于你怎么拿手机(竖直还是横向)。
Internal antennas vary in mobile devices, depending on how you're holding them (in portrait or landscape mode).
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