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He is the welsh potting machine, he is Mark J Williams!
他是威尔士进球机器，他是马克·威廉姆斯！
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It is essential to mark common difference measurement in a machine drawing.
尺寸公差标注是绘制机械图的一项重要内容。
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It is essential to mark common difference measurement in a machine drawing.
尺寸公差标注是绘制机械图的一项重要内容。
youdao