Terms for subject Transport containing Both

English	Spanish
bolt threaded at both ends	varilla roscada en los dos extremos
both direction working	circulación en ambas direcciones
both switches to left	cambio doble con dos vías desviadas a la izquierda
both switches to right	cambio doble con dos vías desviadas a la derecha
built-up common crossing with both rail curved	corazón de cruzamiento armado con carriles curvado a derecha
built-up common crossing with both rails straight	corazón de cruzamiento armado con carriles de ramas rectas
built-up obtuse crossing with both rails curved	corazón de travesía armado con carriles y en curva
built-up obtuse crossing with both rails straight	corazón de travesía armado con carriles y en recta
cast common crossing with both rails curved	corazón de cruzamiento fundido curvado a derecha
cast common crossing with both rails straight	corazón de cruzamiento fundido de ramas rectas
rod threaded at both ends	varilla roscada en los dos extremos