Thereby what microcosmic economics proved product market vigorously is balanced with element market balanced.

从而微观经济学就花大力气论证了产品市场的均衡和要素市场的均衡。

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WPT is no longer being enhanced, because it proved useful enough during trial stages to move into continued development as a commercial product.

现在不再将WPT进行增强了，因为在试验阶段证明了它非常有用，可以将其作为商业产品继续开发。

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Why is advertising so popular? Is it a waste of money? It has been proved again and again that? Repeated advertising increases product sales.

为什么广告如此流行？广告不是在浪费钱么？事实一遍又一遍地证明，重复播放广告可以增加产品的销售量。

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In any case, the iPod shuffle has proved the product's vaunted "halo effect" in that, when Apple introduced its new iPod in January, everybody stopped talking about how many copies of Halo 2 Microsoft shipped during December.

ENGADGET: Switched On: Motorola will play shuffle-bored on deck

The product proved to be a needless insurance policy in what became a seven-year bull run for stocks.

FORBES: Another Option

Even so, the iPad proved to be another ground-breaking product with sales topping billions of dollars in the first couple of months, bringing new life to a segment of the computer market that had until then been essentially moribund.

FORBES: Apple After Steve: An Insider's View On What's Next