Parametric tolerance determining methods for steel rail height and rail bottom concavity

The invention discloses parametric tolerance determining methods for steel rail height and rail bottom concavity, and solves the problem of large error in a conventional determining method. The parametric tolerance determining method for the steel rail bottom concavity comprises the steps of firstly...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	ZHU HUALIN, FAN HONGPING, LYU PANFENG, TAO GONGMING
Format:	Patent
Sprache:	eng
Schlagworte:	MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS PHYSICS TESTING
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