路ろ盤ばん

noun

roadbed; subgrade

Civil engineering term for the prepared foundation layer of a road or railway, below the surface course.

• 新あたらしい道どう路ろの路ろ盤ばん工こう事じが始はじまった。

  Construction of the roadbed for the new road has begun.

counter

lines on a Go board; board size

Used as a counter to specify the number of lines on a Go board, e.g. 9路盤 means a 9×9 board. Domain-specific Go terminology.

• 初しょ心しん者しゃは9路ろ盤ばんで囲い碁ごを学まなぶことが多おおい。

  Beginners often learn Go on a 9×9 board.