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MMDA (3-methoxy-4,5-methylenedioxyamphetamine; 5-methoxy-MDA) is a psychedelic and entactogen drug of the amphetamine class. It is an analogue of lophophine...

Plastic welding is welding for semi-finished plastic materials, and is described in ISO 472 as a process of uniting softened surfaces of materials, generally...

Heat-shrink tubing (or, commonly, heat shrink or heatshrink) is a shrinkable plastic tube used to insulate wires, providing abrasion resistance and environmental...

The helium dilution technique is the way of measuring the functional residual capacity of the lungs (the volume left in the lungs after normal expiration)...