English translation for "二级标准文件"
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- secondary standard file
- Similar Words：
- "二级变速主皮带轮" English translation, "二级变像器" English translation, "二级标准" English translation, "二级标准磁带" English translation, "二级标准磁盘面" English translation, "二级标准物" English translation, "二级标准物质" English translation, "二级标准物质,二级参比物质" English translation, "二级冰川" English translation, "二级波" English translation
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