1.   A large supply voltage and phase resistance are only required when the motor is operating at high speeds.

2.   Academics are intertwined in networks which operate at different administrative levels, from the department to the institution itself.

3.   Both reactors are now operating at full load.

4.   But even after all these measures had been adopted a number of projects continued to operate at a hopeless loss.

5.   Cells fitted with diamond windows have been operated at pressures of over one million atmospheres at the Carnegie Institute in Washington.

6.   Clearly, then, housing policy operates at present to reinforce the nuclear family.

7.   Feminists have always been quick to point out the double standards which operate at virtually every level of discourse.

8.   In such conditions the government operates only at the Margin of social activity.

9.   Language operates at various levels of abstraction.

10.   Moreover, this skilled incompetence not only operates at the individual level, it permeates the entire organisational culture as well.