You can take pictures of the wonderful exhibits, but don't let the dirty things on your hands speed up the corrosion of them.

你可以拍摄精彩的展品，但不要让手上的脏东西加速它们的腐蚀。

The sensor sits in the knob of the company's so-called Smart Bat and uses two accelerometers and a three-axis gyroscope to measure bat speed, hand speed, attack angle and other factors.

该传感器位于这家公司智能球棒的把手处，其中的2个加速器及一个3轴陀螺仪能够对球棒速度、手速、打击角度等其他因素进行测量。