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n. Any system of pipes or tubes; piping

n. The pipes and stops of an organ

n. See organ, 6.

n. Same as piping, 4.

n. the flues and stops on a pipe organ

"Some parts of the processing machinery such as pipework, heat exchangers, tanks, fillers etc. must be cleaned immediately after the production cycle has finished so that when the next production cycle starts, the system should be cleaned."

wind    wind instrument   

labial pipe    reed pipe    flue pipe    flue    organ stop