precessionsとは 意味・読み方・使い方

To provide a percussion device which is easily placed to an earth auger without burden, does not use oil pressure or pressure air, performs auger work to use continuous precessions jointly, improves work efficiency in press- fitting steel pipes and rails by rotation press-fitting, reduces percussion sound, and performs manufacturing or construction at low cost.例文帳に追加

アースオーガーに負担なく簡単に装着でき、油圧や圧力空気を使用せず、連続した打撃併用オーガー作業が行え、回転圧入による鋼管やレール圧入の作業効率を高め、打撃音を減少させ低コストで製造又は、施工が行える打撃装置を提供する。 - 特許庁