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2variable variable2 whatavariable $another
Always null Local variable Common variable System variable
one’’s behavior can be predicted by knowing his or her birthday. nobody can choose his or her date of birth as he or she wishes. an individual’’s performance is irrelevant to his or her birthday. a person’’s level of performance varies according to the test date.
Director Pointer Array Record
VMD Domain Named variable Named Variable List
foo foo$temp foo’this is a temped variable’ foothis is a temped variable
controlled variable manipulated variable set point control point
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variable injection timing variable inlet tonnage vertical incoming tonnage vertical inlet tank
Always null Local variable common variable system variable
Constant pressure system Variable pressure system Variable displacement system Constant volume system
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cause and effect can be independent of each other. there is hardly anything that happens without a cause. dependent and independent variables affect each other. cause and effect may vary respectively in most events.
which governs the state of a variable which provides a visual and audible alarm which indicates values of controlled variables which measures the state of the controlled variable
rules used for ordering and connecting words in a sentence. principles defining the connections among different variables. definitions describing the impact of biorhythm on one’’s behavior. criteria measuring a person’’s performance levels with biorhythm.
A variable pitch propeller A variable pitch nut A fixed pitch parallel A fixed pitch screw
a variable displacement axial piston pump a constant displacement axial piston pump a reciprocating piston pump a centrifugal pump
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