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2. Power take-off - Wikipedia

   en.wikipedia.org/wiki/Power_take-off

   A PTO at the rear end of a farm tractor A PTO (in the box at the bottom) in the center of the three-point hitch of a tractor. A power take-off or power takeoff (PTO) is one of several methods for taking power from a power source, such as a running engine, and transmitting it to an application such as an attached implement or separate machine.

3. Pressure switch - Wikipedia

   en.wikipedia.org/wiki/Pressure_switch

   Switch enclosures may also be required to be weatherproof, corrosion resistant, or submersible. An electronic pressure switch incorporates some variety of pressure transducer (strain gauge, capacitive element, or other) and an internal circuit to compare the measured pressure to a set point. Such devices may provide improved repeatability ...

4. Three-point hitch - Wikipedia

   en.wikipedia.org/wiki/Three-point_hitch

   Some of these systems, with one-point or two-point hitching, were not well suited to lifting heavy implements. They also presented the problem of incompatibility between brands of tractors and implements, applying pressure toward vendor lock-in that many farmers resented. During the 1950s and 1960s, farmers often would have to purchase the same ...

5. Dry running protection - Wikipedia

   en.wikipedia.org/wiki/Dry_running_protection

   Dry running protection, also known as dry-run protection or dry-running protection, is a type of protection mechanism to prevent a rotor, pump or stirrer shaft from operating without any medium added, as the bearing and shaft seal might be damaged if the motor is run while dry. [1]

6. Control valve - Wikipedia

   en.wikipedia.org/wiki/Control_valve

   A control valve is a valve used to control fluid flow by varying the size of the flow passage as directed by a signal from a controller. [1] This enables the direct control of flow rate and the consequential control of process quantities such as pressure, temperature, and liquid level.

7. Antioxidant-rich diet may reduce risk of iron buildup ... - AOL

   www.aol.com/antioxidant-rich-diet-may-reduce...

   Diets rich in four different types of nutrients may help reduce iron buildup in the brain and lower the risk of cognitive decline that comes with aging, a new study suggests.