noun
pure straight (mahjong)
Mahjong term: a winning hand containing three chows of the same suit in consecutive order from 1 to 9.
一気通貫は、同じスートで1から9までを揃える役です。
Pure straight is a hand that collects tiles from 1 to 9 in the same suit.
noun
streamlined production system; end-to-end integration
Business metaphor derived from the mahjong term, describing a production or supply chain that is seamlessly integrated from start to finish.
この工場では一気通貫の生産体制を導入している。
This factory has introduced a streamlined production system from start to finish.