这个张力在不断增大，又因物体，无加速度-，物体受到向下的力影响-，张力必然不断增加？

So this tension goes up and up and therefore, since this object - is not being accelerated — - we're going to get a force down now on this object — this tension must increase, right?

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它们是怎样利用iPhone独一无二的特点的：加速度计，摇晃特性，多点触摸，旋转功能?

How do they take advantage of the iPhone’s unique characteristics: the accelerometer, swiping features, pinch, expand and rotate functions?

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本文以压阻式加速度计为例，探讨了其动态特性对无陀螺微惯性测量组合的影响。

The dynamic characteristics of accelerometers working on gyro free micro inertial measurement units was discussed, with a piezoresistive accelerometer as an example.

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