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1. The engineers are using a new position welding technique to improve the efficiency of the assembly line.
工程师们正在使用一种新的定位焊接技术来提高装配线的工作效率。
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2. In this workshop, you will learn how to use a spot welder to join metal parts together.
在这个工作坊里，你将学习如何使用点焊机将金属部件连接在一起。
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3. The company has invested in advanced flux welding equipment to ensure quality control during production.
该公司投资了先进的焊接设备，以确保生产过程中的质量控制。