下載 APKPure App
可在安卓獲取Physics Toolbox Ruler的歷史版本
這個程序是一個數字標尺，以允許用戶以測量在厘米或在一個對象。
This app is a digital ruler to allow the user to measure an object in centimeters or inches. Simply place the object to the side of the screen and use two fingers to locate the endpoints of the object. A digital readout determines the vertical displacement between the two endpoints.