A mechanical system consists of (i) a power source and actuators that generate forces and movement, (ii) a system of mechanisms that shape the actuator input to achieve a specific application of output forces and movement, and (iii) a controller with sensors that compares the output to a performance goal and then directs the actuator input.
Committee with a continued existence, formed to do its assigned work on an ongoing basis. Budget and finance committees generally are standing committees. See also ad hoc committee.
Ways and Means Committee definition. A permanent committee of the House of Representatives, which makes recommendations to the House on all bills for raising revenue. The committee is the principal source of legislation concerning issues such as taxation, customs duties, and international trade agreements.