reamer russian

• расшири́тель

  dilator

  expander, reamer, expansion device

• развёртка

  development (onto a plane), unfolding, unrolling

  net (flat pattern), unfolded view, developed drawing

  reamer

  scanning, sweep

  involute, evolvent

Examples

• Для этой детали нужна специальная развёртка.

  This part requires a special reamer.