recording system
— Noun
– English
～ audio system for recoding sound
receiving system
— Noun
– English
～ set that receives radio or tv signals
railway system
— Noun
– English
～ line that is the commercial organization responsible for operating a system of transportation for trains that pull passengers or freight
reticuloendothelial system
— Noun
– English
～ a widely distributed system consisting of all the cells able to ingest bacteria or colloidal particles etc, except for certain white blood cells
reticular activating system
— Noun
– English
～ the network in the reticular formation that serves an alerting or arousal function
refrigeration system
— Noun
– English
～ a cooling system for chilling or freezing (usually for preservative purposes)
reference system
— Noun
– English
～ a system that uses coordinates to establish position
root system
— Noun
– English
～ a developed system of roots
reproductive system
— Noun
– English
～ organs and tissues involved in the production and maturation of gametes and in their union and subsequent development as offspring
respiratory system
— Noun
– English
～ the system for taking in oxygen and giving off carbon dioxide; in terrestrial animals this is accomplished by breathing