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drain
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Any pipe that carries waste water or sewage through a drainage network into the municipal sewer or a private septic system.
출처: www.homestore.com/HomeGarden/HomeImprovement/Tools...
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dram
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Random-access memory in which each storage address must be periodically accessed ("refreshed") to maintain its value.
출처: developer.apple.com/documentation/Hardware/DeviceM...
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dram
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Refers to Dynamic Random Access Memory.
출처: www.oasismanagement.com/frames/TECHNOLOGY/GLOSSARY...
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drag
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the air resistance acting on airplanes. Drag acts in the opposite direction of thrust. Two types of drag are pressure and skin friction drag
출처: whyfiles.larc.nasa.gov/text/kids/Problem_Board/pro...
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drainage
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1. The rapidity and extent of the removal of water from soil by runoff or flow downward to underground spaces. 2. As a soil condition, the usual moisture condition of the rooting zone.
출처: museum.gov.ns.ca/mnh/nature/nhns2/glossary.htm
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