I
• Insulators are used to confine the passage of electricity to the desired paths in any circuit.
• The transformer limits ( or restricts , or confines ) the bandpass to 2 Me.
• The sample size has to be restricted to prevent overloading the column.
• Considerations of symmetry constrain the choice of terms.
• In a room-temperature computer the signal transmission properties of metallic conductors can severely constrain the maximum operating speed.
• Our orbital model of the atom restricts the centralized nuclear region to a single electron pair.
II
• The duration of usable laser energy for heating dense, freely expanding, small plasmas is bounded by two characteristic times.
• Any line segment that partially bounds a plane geometric figure ...