3) metering out
71Open standard — An open standard is a standard that is publicly available and has various rights to use associated with it, and may also have various properties of how it was designed (e.g. open process). There is no single definition and interpretations vary… …
72Photographic filter — Four photographic filters. Clockwise, from top left, an infrared hot mirror filter, a polarising filter, and a UV filter. The larger filter is a polariser for Cokin style filter mounts. In photography and videography, a filter is a camera… …
73District heating — Biomass fired district heating power plant in Mödling, Austria …
74Autogas — is the common name for liquified petroleum gas (LPG) when it is used as a fuel in internal combustion engines in vehicles. The same equipment is also used for similar engines in stationary applications such as generators.Autogas is widely used as …
75Canon EF camera — lenses. The EF was built as an electronic version of Canon s top of the line F 1 camera. Because of this, the EF shares the F 1 s rugged construction and tough metal body. Unlike the F 1, the EF doesn t support any motor drive for film… …
76Demand response — This article is about the electrical concept. For the transport concept, see Demand responsive transport. A clothes dryer using a demand response switch to reduce peak demand In electricity grids, demand response (DR) is similar to dynamic demand …
77Mechanical fuel injection — Basic Concept of Mechanical Injection All forms of fuel injection (FI) are designed to achieve the delivery of a correct fuel/air mix into an internal combustion engine for the most fuel efficient burn. All forms of fuel injection do so by… …
78Water supply and sanitation in Latin America — is characterized by insufficient access and in many cases by poor service quality, with detrimental impacts on public health. Water and sanitation services are provided by a vast array of mostly local service providers under an often fragmented… …
79Minolta AF — The Minolta A mount now in production via Sony s AMC Alpha Mount Camera Division …
80Polarizing filter (photography) — Circular polarizer/linear analyzer.[1] filtering unpolarized light and then circularly polarizing the result. The polarizing filter used with most mo …
