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關(guān)注:1
2013-05-23 12:21
求翻譯:constantly evolved, allowing modern TBMs to excavate very hard and abrasive rock efficiently. Disc cutters是什么意思?![]() ![]() constantly evolved, allowing modern TBMs to excavate very hard and abrasive rock efficiently. Disc cutters
問題補(bǔ)充: |
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