用economical span造句子,“economical span”造句
來源:國語幫 1.33W
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.