alignment tool的用法和樣例：
例句
- By setting a one-dimensional line tool across the image and calculating the grayscale difference across this line, a series of points will be generated throughout the frames.
通過設置橫寬圖像一維線工具並計算橫跨線的灰階差異，可以在所有的幀中生成一系列的點。 - This is an online tool which allows you to analyze frontpage stories and determine a host of factors related to the tipping point when a story goes popular.
這是一個在線工具，它可以讓你分析首頁文章並且找出一篇文章流行時影響它流行的關鍵點。
