For 300M, the corrosion resistance of rust layer becomes larger/smaller with the corrosion productions gathering/drapping on/from the samples.
300M钢的腐蚀产物电阻随腐蚀产物的集聚而增大, 随脱落而减小;
For 300M, the corrosion resistance of rust layer becomes larger/smaller with the corrosion productions gathering/drapping on/from the samples.
300M钢的腐蚀产物电阻随腐蚀产物的集聚而增大, 随脱落而减小;
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