Many experiments were treated in productive condition. We had looked for the better component ratio and the better heat treatment technical procedure.
许多试验都在生产条件下进行的，我们已经找到了较好的成分比例和热处理工艺规程。
Many experiments were treated in productive condition. We had looked for the better component ratio and the better heat treatment technical procedure.
许多试验都在生产条件下进行的，我们已经找到了较好的成分比例和热处理工艺规程。
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