discretionary
2.discretionary stabilizer
3.A discretionary fund.
4.Discretionary payments to old people
6.A specific type of express trust is a discretionary trust.
7.Modeling and Verifying Discretionary Access Control by Colored Petri Net
8.Discretionary Angle Laser Shaft Alignment Instrument Based on Two dimensional PSD
9.in many restaurants,discretionary tipping is being replaced by a standard service charge.
10.Design and implementation of discretionary access control policy with time character on Linux
