改かい良りょう工こう事じ

noun

improvement work; renovation; betterment

Refers to construction or engineering work aimed at improving existing facilities, infrastructure, or systems. Often used in technical, municipal, or project contexts.

• 市しは来らい月げつから公こう園えんの改かい良りょう工こう事じを始はじめる予よ定ていだ。

  The city plans to start improvement work on the park next month.

• この道どう路ろの改かい良りょう工こう事じは来らい年ねんまで続つづく。

  The improvement work on this road will continue until next year.