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1.The spot welding primer is essential for the proper bonding of metal parts.
点焊料对于金属部件的正确结合至关重要。
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2.The technician used a special spot welding primer to ensure a strong connection between the two pieces.
技术人员使用了一种特殊的点焊料，以确保两块之间的牢固连接。
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3.The spot welding primer was applied evenly over the surface of the metal, ensuring a uniform bond.
点焊料被均匀地涂在金属表面，确保了均匀的结合。