EntityQ1139344· pop 32· linked from 1,982 articlesgradeSign in to savetangent of the angle of a surface to the horizontalConnectionssoil scienceEntityper milleEntityfunicularEntityrack railwayEntitypermeabilityEntityKöln–Frankfurt high-speed rail lineEntityconsolidationEntitythoroughfare embankmentEntityGreat Western Main LineEntitycutEntityMatheran Hill RailwayEntityFranceCountryFinlandCountryNetherlandsConceptSouth AfricaCountryCzech RepublicCountryWalesEntityarchitectureEntitycarEntityearthquakeEntityCategoriesAngleConstructionEnvironmental designHorticultureInterlanguage link template forcing interwiki linksLandscape architecturePhysical geographyTransportation engineering