It is aimed at students who have been taught to solve simultaneous expressions for two linear, and one linear and one quadratic, equations. (tes.com)
These two views of nature developed in parallel and could find simultaneous expression in figures such as Cotton Mather, from whose pen both phrases come. (firstthings.com)
Swing Maxi has a more powerful motor than the single electric Swing Maxi breast pump allowing a mother to pump 18 % more milk in half the time with the combination of simultaneous expression and 2 - Phase Expression technology. (amazon.co.uk)