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1. The engineer used a special cement welding machine to reinforce the structure.
工程师使用一种特殊的水泥焊接机器来加固结构。
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2. The construction workers were using concrete welding techniques to join the beamstogether.
建筑工人正在使用混凝土焊接技术将梁连接在一起。
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3. The hydraulic welding process is widely used in industrial applications for its efficiency and precision.
液压焊接工艺在工业应用中广泛使用，因其效率和精度而受到青睐。