Track your trade day by day, calculating stops and deciding where to take profits.

每天都这么跟踪，计算止损点，决定何处兑现利润。

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Then you track that point relative to the controller, calculating its velocity as it changes position.

然后，相对与控制器跟踪该点，通过改变位置来计算其速度。

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Method of calculating the adjusting resistance of frequency shift track circuit for normal state and shunting state is introduced.

本文介绍了移频轨道电路调整状态及分流状态调整电阻的计算方法。

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Satellites have long been used to track ice extent (area), but calculating the thickness of the marine floes requires the overflying spacecraft to gauge the difference between the top of the ice surface and the top of the water - a relatively simple calculation then gives the overall volume.

BBC: Launch success for Esa's Cryosat-2 ice mission

Calculating your body mass index and measuring your waist are great ways to keep on track.

BBC: People can be fat yet fit, research suggests