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| Lactation |
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Describes the secretion of milk from the mammary glands, the process of providing milk to the young and the period of time that a mother lactates to feed her young. Chief function is to provide nutrition to the young after birth.
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| Laminar (flow) |
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A condition where the fluid particles move in continuous parallel paths.
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| Laminate |
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A product made by bonding together two or more layers (laminations) of material or materials.
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| Legume |
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Any of thousands of plant species that have seed pods that split along both sides when ripe. Some of the more common legumes used for human consumption are beans, lentils, peanuts, peas, and soybeans. Others, such as clover and alfalfa, are used as animal feed.
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| Level |
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Perfectly horizontal.
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| Leverage |
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A gain in output force over input force by sacrificing the distance moved. Mechanical advantage or force multiplication.
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| Lift |
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The height a body or column of fluid is raised; for instance, from the reservoir to the pump inlet. Lift is sometimes used to express a negative pressure or vacuum. The opposite of head.
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| Lignin |
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A complex indigestible substance that is a major structural component of mature plants. It is contained in the fibrous portion of stems, leaves, cobs and hulls of plants.
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| Limit fed |
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Rations fed at a specific amount per animal per day.
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| Limit switch |
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Electrical device that transmits an electrical signal when in physical contact with an object.
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| Line |
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A tube, pipe or hose which acts as a conductor of hydraulic fluid.
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| Linear actuator |
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A device for converting hydraulic energy into linear motion - a cylinder or ram.
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| Liter (l) |
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Basic unit of volume in the metric system equal to 1,000 cubic centimetres (1.056 US quarts).
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| Loader |
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Any of a variety of machines, wheel or track mounted, designed primarily to lift and load a truck, train or other mode of transportation.
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