单词	trunk pipe-line
释义	trunk pipe-line 油管乾线
随便看	check only check only for account check on protection of secrets check on some action check on tests check on the civil service check on the quality check on work check on work attendance check on working conditions in the driver's cab check operation check operator check order Check or improve cooling channel checkout check out check-out check out all the instruments Checkout and Automatic Monitoring check out and edit a file Checkout and Firing Subsystem Checkout and Maintenance Checkout and Maintenance Status Console check out books checkout cable