|≈||approximately equal to|
|digits||indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …)|
The acre-foot is a unit of volume commonly used in the United States in reference to large-scale water resources, such as reservoirs, aqueducts, canals, sewer flow capacity, irrigation water, and river flows.
The official imperial cup was half an imperial pint or 10 imperial fluid ounces. It is no longer in common use, but appears in older recipe books.
|1 imperial cup||=||0.5||imperial pints|
|=||10||imperial fluid ounces|
|≈||1.20||U.S. customary cups|
|≈||9.61||U.S. customary fluid ounces|