例句與造句

1. Invented in 1997 they are manufactured New Concept Mining in South Africa and are now used around the world to support the roof in underground mining operations.
2. For the purposes of concept mining however, these ambiguities tend to be less important than they are with machine translation, for in large documents the ambiguities tend to even out, much as is the case with text mining.
3. It's difficult to find concept mining in a sentence. 用concept mining造句挺難的