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关注:1
2013-05-23 12:21
求翻译:Apply the lowest visible part of the flame to the end face of the specimen and to its vertical faces to a depth of approximately 6 mm.是什么意思?![]() ![]() Apply the lowest visible part of the flame to the end face of the specimen and to its vertical faces to a depth of approximately 6 mm.
问题补充: |
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