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- calligrnphic Oart 书法艺术
- All of O+ ion has combined with the metal atoms in SUS304, on the other hand, only oart of O+ ion reacted with metal atoms in pure Fe, Ni and Cr. 氧离子溅射后,SUS304 不锈钢表面的氧全部以化合态形式存在;
- OART Office of Advanced Research and Technology (NASA) 国家航空和宇宙航行局高级技术研究办公室
- automotive oart corporation 汽车零部件企业