| 释义 | 
		ir·ri·ga·tor \-ād.ə(r), -ātə-\ noun (-s)  : one that irrigates: as  a.  : an agriculturist who employs irrigation in the growing of crops  b.  : a device, apparatus, or system used to irrigate something (as a wound or a crop)  c.  : a worker who supervises agricultural irrigation or irrigating equipment |