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| layer (The protocol or protocols operating at a particular level within a protocol suite, such as IP within the TCP/IP suite); level (The name of a set of members in a dimension hierarchy such that all members of the set are at the same distance from the root of the hierarchy. For example, a time hierarchy may contain the levels Year, Month, and Day) | |||
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dereje : 7 短语, 2 学科 |
| 微软 | 6 |
| 石油加工厂 | 1 |