jig borer
Synonym of finger joint
Not flummoxed.
A type of machine tool invented during the World War I era to make possible the quick-yet-very-precise location of hole centers.
plural of correctorship
その機械工は、穴の中心を迅速かつ極めて高精度に位置決めできる工作機械を使って、部品の取り付け穴をマイクロメートル単位の精度で位置決めし、穴をあけた。
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DiQt
Free
★★★★★★★★★★
