Furthermore, an effective method for controlling the load of buried pipeline is to increase cover depth on road crossing pipeline.
指出增大穿越公路管道的埋深是控制该埋地管道荷载的有效方法。
The northern land Silk Road, crossing northern grasslands and oases, relied mainly on camels and horses as the means of transportation.
北方草原丝路和北方绿洲丝路是早期比较繁荣的陆上交通线，交通工具多为耐旱的骆驼和马匹。
The northern land Silk Road, crossing northern grasslands and oases, relied mainly on camels and horses as the means of transportation.
北方草原丝路和北方绿洲丝路是早期比较繁荣的陆上交通线，交通工具多为耐旱的骆驼和马匹。
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