Şunu aradınız:: tpi (İngilizce - Letonca)

tpi cg
tpi cg

tpi is calculated in accordance with paragraph 4.2.1.
tpi aprēķina saskaņā ar 4.2.1. punktu.

tpi = (ths × l – co) × n × bf / rs
tpi = (ths × l – co) × n × bf/rs

in the case of tpi = tpi + 1, from the largest to smallest; i.e.:
gadījumā, ja tpi = tpi-1, no vislielākā uz vismazāko, t.i.,:

tracking technology: they have 3450 or 2490 tracks per inch (tpi) respectively, compared to 135 tpi for conventional 3,5" microdisks.
sekošanas tehnoloģija: tiem ir attiecīgi 3 450 vai 2 490 celiņi vienā collā (tpi), salīdzinot ar 135 tpi parastajiem 3,5 collu mikrodiskiem.