low-pressure filter
61Sodium vapor lamp — A sodium vapor lamp is a gas discharge lamp which uses sodium in an excited state to produce light. There are two varieties of such lamps: low pressure and high pressure . Low pressure sodium Low pressure sodium (LPS) lamps, also known as sodium… …
62Electron microscope — Diagram of a transmission electron microscope A 197 …
63Mercury-vapor lamp — Mercury Lamp redirects here. For the character in the Rozen Maiden anime and manga, see Characters of Rozen Maiden. A 175 watt mercury vapor yard light approximately 15 seconds after starting …
64MIDI usage and applications — Many extensions of the original official MIDI 1.0 specification have been jointly standardized by the MIDI Manufacturers Association (MMA) in the US and the Association of Musical Electronics Industry (AMEI) in Japan. General MIDI (GM) was an… …
65rare-earth element — /rair errth /, Chem. any of a group of closely related metallic elements, comprising the lanthanides, scandium, and yttrium, that are chemically similar by virtue of having the same number of valence electrons. Also called rare earth metal. [1955 …
66cereal processing — Introduction treatment of cereals (cereal) and other plants to prepare their starch for human food, animal feed, or industrial use. Nutrient composition of selected raw cereal grains (per 100 grams)Cereals, or grains, are members of… …
67Glaucoma — Classification and external resources Acute angle closure glaucoma of the right eye. Note the mid sized pupil, which was nonreactive to light, and injection of the conjunctiva. ICD 10 …
68Cement kiln — Cement kilns are used for the pyroprocessing stage of manufacture of Portland and other types of hydraulic cement, in which calcium carbonate reacts with silica bearing minerals to form a mixture of calcium silicates. Over a billion tonnes of… …
69microscope — /muy kreuh skohp /, n. 1. an optical instrument having a magnifying lens or a combination of lenses for inspecting objects too small to be seen or too small to be seen distinctly and in detail by the unaided eye. 2. (cap.) Astron. the… …
70Cryogenic oxygen plant — A cryogenic oxygen plant is an industrial facility that creates molecular oxygen at relatively high purity. Oxygen is the most common element in the world and the second largest industrial gas. The purity of oxygen can only be generated by… …
