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English to Portuguese translations [PRO] Engineering (general) / permutador de calor
English term or phrase:engaged
When expanders work, special care shall be taken whether to large expanding or no adequate tube expanding.
The length that the expander is engaged, it shall be equivalent to the length of tube expander tip.
In case that such expander length is too deep, tube would expand larger than tube-sheet hole, and consequently, exchange work at next time would become more hard.
The translation workplace 
peer agreement (net): +2
