Aimed at the gyro drifts and the accelerometer biases, a good solution which is a test under three position condition is presented.

针对陀螺漂移和加速度计零偏，提出了一种三位置现场测试方法。

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Finally it is concluded that PWM-ON-PWM is the existing optimal PWM mode for reducing commutation torque ripples, and achieves this mode on condition of three position sensors.

最后得出对转矩脉动最优的斩波方式为PWM—ON—PWM，并在三个位置传感器的条件下运用位置预测法实现。

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However, if the planet is in a good position, astronomers look for three key things: water, air and rock.

然而如果这颗行星处于很好的位置，天文学家会寻找三样关键的东西：水、空气和岩石。

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At the age of thirty-three, he became one of the youngest doctors in the United States to hold that position.

VOA: special.2009.09.04

Because it takes three units where there's only four choices at each position to have at least 20 unique combinations.

因为每个位点上仅有四种可能性,只有采用三个碱基一组,才能取得至少二十种不同的组合方式

耶鲁公开课 - 生物医学工程探索课程节选

All but three position players have arrived at camp, though official voluntary reporting date for them isn't until Saturday.

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The 24-year-old has made a fine start in his bid to tie down the number three position ahead of this summer's Ashes.

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India's dominance at the shooting range continued as Gagan Narang and Imran Hasan Khan won gold in the men's 50m rifle three position pairs.

BBC: Commonwealth Games 2010: Aussies rule in velodrome