| A | B |
|---|
| Exploded Assembly | An assembly drawing in which parts are moved out of position along an axis so that each individual part is visible. |
| Formula | A mathematical relationship or rule expressed in symbols. |
| Numeric Constraint | A number value or algebraic equation that is used to control the size or location of a geometric figure. |
| Parameter | A property of a system whose value determines how the system will behave. |
| Parametric Modeling | A CAD modeling method that uses parameters to define the size and geometry of features and to create relationships between features. Changing a parameter value updates all related features of the model at once. |
| Phantom Line | A line used to show the alternate positions of an object or matching part without interfering with the main drawing. |
| Ratio | The quantitative relation between two amounts showing the number of times one value contains or is contained within the other. |
| Rib | A relatively thin flat member acting as a brace support. Also called a web. |
