hydrogen maser
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- disjoining pressure
- ceiling light
- capillary electrical phenomenon
- sturm liouville equation
- ritz formula
- kennelly heaviside layer
- particle-number operator
- Four-dimension Momentum
- viscous solid
- distributed ion pump
- deflection field
- magnetic induction flux
- algebraic
- conical pendulum
- complex refractive index
- relativistic astrophsics
- trichromatic equation
- residual heat
- vapor pressure
- early-type star