New pharmaceuticals, as a rough approximation, are introduced one to two years earlier in the U.S. than elsewhere.

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Simplyhired.com also has an easy-to-use salary tool that can give a rough approximation of pay in a particular geographic location.

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It's an impressive showcase for his slow and rusty howl, which always did sound like a rough approximation of bluesman Charley Patton.

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However, there are only six million employer firms, so as a rough approximation, the percentage of employer firm owners impacted would be more like 15 percent.

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The first step is simply for a player to note the time it takes for the ball to pass a fixed point to get a rough approximation of the velocity of the ball.

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