最初，研究者们的实验使用的是苹果的iPhone3gs，但是3gs的重力感应器却不够灵敏。
The researchers' initial experiments used Apple's iPhone 3gs, but the phone's accelerometer lacked the necessary sensitivity.
而研究人员所使用的手机，其内置重力感应器采样率仅为100次每秒，因此他们并没有足够的数据来计算得到明确的密码。
The accelerometer in the phone the researchers used samples only 100 times a second, so they did not have enough data to determine the exact keys struck.
相反，研究者们利用从重力感应器得到的数据，来判断相应的按键到底是在键盘的左边还是键盘的右边，并计量两个按键之间的延时。
Instead, the researchers used the data from the accelerometer to determine whether key taps were on the right or left side of the keyboard and to gauge the delays between keystrokes.
相反，研究者们利用从重力感应器得到的数据，来判断相应的按键到底是在键盘的左边还是键盘的右边，并计量两个按键之间的延时。
Instead, the researchers used the data from the accelerometer to determine whether key taps were on the right or left side of the keyboard and to gauge the delays between keystrokes.
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