“economical span”可以造什么句,economical span造句
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We call such a spanning subgraph T an economical spanning subgraph.
The large-span CFST arch bridge is developing rapidly in recent years due to its elegant appearance and economical span.
We call such a spanning subgraph T an economical spanning subgraph.
The large-span CFST arch bridge is developing rapidly in recent years due to its elegant appearance and economical span.