词汇	洞口施工
释义	洞口施工 construction technology of tunnels entrance
随便看	Trial and error is the source of knowledge Trial and error is the source of our knowledge trial and error learning trial-and-error learning Trial-and-error learning trial and errormethod trial-and-errormethod trial and error method trial and-error method trial-and-error method Trial-and-error method of blending aggregates trial-and-error method procedure trial-and-error methods trial-and-error observation trial and error phase trial and error principle trial-and-error principle trial and error procedure trial-and-error procedure trial and error process trial and error response trial and errors trial-and-errors trial and error search trial-and-error search