1 Rice, the primary cereal crop grown in East Asia, is particularly suited to the warm, wet growing season. ( 2 Rice is best grown in flooded fields, or paddies.) Since rice produces a much higher yield per acre than does a crop such as wheat, it can support a much greater population per acre than does wheat.
Hydraulic Motor Circuits. These are partial circuits, illustrating some of the ways hydraulic motors can be connected. and controlled. Each circuit is condensed to its simplest form to illustrate one basic idea. These circuits can be combined with other hydraulic circuitry to make up a complete working. circuit. Parallel Motors.
Hydraulic power systems commonly involve a pump (as a power source), a series of tubes or elastomeric hoses for transmitting pressurized fluid, and some type of control (typically a series of valves, actuators, or cylinders). As the power transmission media, hydraulic fluids are indispensable in these systems.