flaw of manual operationとは 意味・読み方・使い方

To provide a heating and coating device and a method for roadworks, in which line breadth can be freely drawn by machining the coating and filling of tar or an asphalt emulsion to new-old paving joint surfaces executed in shape by manual operation, a road-surface cracking section and a cutter flaw, layer thickness can be adjusted in response to required places and the quick adaptability of execution materials is obtained.例文帳に追加

手作業で不定形に施工されていた新旧舗装接合面、路面亀裂部、カッター痕へのタールまたはアスファルト乳剤の塗布及び充填を機械装置化して線幅を自在化し、必要個所に応じて層厚の調整ができ、施工資材の即施工性を得る道路工事用加熱、塗布装置及び方法の提供。 - 特許庁