high efficiency particulate air
71United States Environmental Protection Agency — EPA and Environmental Protection Agency redirect here. For other uses, see EPA (disambiguation). Environmental Protection Agency EPA Environmental Protection Agen …
72industrial glass — Introduction solid material that is normally lustrous and transparent in appearance and that shows great durability under exposure to the natural elements. These three properties lustre, transparency, and durability make glass a favoured… …
73Orbital Corporation Limited — (Asx|OEC, OTCBB|OBTLY) is an Australian company that invented and developed a technology that it claims to reduce air pollution from internal combustion engines and improve fuel efficiency. Formerly known as Orbital Engine Corporation Limited,… …
74Automobile — For the magazine, see Automobile Magazine. Car and Cars redirect here. For other uses, see Car (disambiguation). Automobile …
75Carbon nanotube — Not to be confused with Carbon fiber. Part of a series of articles on Nanomaterials Fullerenes …
76Environment of China — This article documents the environment of China.One of the serious negative consequences of the People s Republic of China s rapid industrial development has been increased pollution and degradation of natural resources. Much solid waste is not… …
77Oil filter — Spin on oil filter on a Saab 9 5 An oil filter is a filter designed to remove contaminants from engine oil, transmission oil, lubricating oil, or hydraulic oil. Oil filters are used in many different types of hydraulic machinery. A chief use of… …
78Space solar power — Space based solar power (SBSP or SSP) is the conversion of solar energy into power, usable either in space or on earth, from a location in space, usually geosynchronous orbit (GSO). Photovoltaics (PV) would generally be utilized for energy… …
79environmental works — ▪ civil engineering Introduction infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations …
80Fossil-fuel power station — A working coal plant in Rochester, Minnesota The St. Clair Power Plant, a large coal fired ge …
