Aperçu gratuit du livre Griswold's Railroad Engineers' Pocket Companion for the Field: Comprising Rules for Calculating Deflexion Distances and Angles, Tangential Distances and Angles, and All Necessary Tables for Engineers; Also, the Art of Leveling From Preliminary Survey to T
Griswold's Railroad Engineers' Pocket Companion for the Field: Comprising Rules for Calculating Deflexion Distances and Angles, Tangential Distances and Angles, and All Necessary Tables for Engineers; Also, the Art of Leveling From Preliminary Survey to T