d1 is/are tablespoon(s) [measuring instrument] containing/holding/enclosing v2, of volume d2 (default 1) tablespoon(s)/tablespoonful(s) [volume-unit], standard d3=m1 (default 1=15 mL).
Tablespoon (measuring instrument) doesn't need to have the shape/form of a spoon. See also: tablespoon (measuring unit;=mucydekpu). Containment x2 need not be total.