regulador de la 1ª etapa de descompresión
/rˌeɣulaðˈoɾ ðe la pɾimˈɛɾa etˈapa ðe ðˌeskompɾesjˈon/
n
English: regulator first stage · 一级减压器
Significado：Apparatus attached to the cylinder valve that lowers the air pressure coming from the cylinder to an intermediate value (medium pressure).