... protective multiple earthing 保护性多点接地 protective oxide film 氧化物保护层(膜) protective packing 保护包装 ...
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oxide-protective film 氧化保护膜
The method, called Atomic level Deposition, coats silver objects with a protective oxide film in layers just a single atom thick.
这种方法被称作“原子级的沉积”，即在银器表面覆盖氧化物保护层，这层氧化物仅有一粒原子那么厚。
The results of corrosion resistance tests indicate that the uniformity and integrity of the protective oxide film play a key in improving corrosion resistance of porous NiTi alloy.
腐蚀性能的测试结果表明，与氧化层的相结构相比它的均匀、完整性是提高合金耐蚀能力的关键。
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