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1. The welding voltage is critical for thequality of the welded joint.
焊接电压对焊缝质量至关重要。
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2. The welding voltage should be carefully controlled toensure a good welding process.
焊接电压应严格控制，以保证良好的焊接过程。
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3.The welding voltage can affect thestrength and durability of the weldedjoint.
焊接电压会影响焊缝的强度和耐久性。