Apple updated the aluminium unibody MacBook Pro line to include 13-inch, 15-inch and 17-inch models featuring up to 40 per cent longer battery life.

苹果公司更新了拥有铝制机身的MacBook pro产品线，新产品包含13寸、15寸、17寸三种规格的产品，电池续航时间较以前有40%的提高。

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Definition is defined by the number of line pairs or scan lines which can be produced per inch or millimeter of space.

清晰度的定义是指每寸或每毫米空间内所能产生或扫描的线条数目。

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