- adequate shielding
- 足够屏蔽
English-Chinese electricity dictionary (电气专业词典). 2013.
English-Chinese electricity dictionary (电气专业词典). 2013.
Project Orion (nuclear propulsion) — An artist s conception of the NASA reference design for the Project Orion spacecraft powered by nuclear propulsion. Project Orion was a study of a spacecraft intended to be directly propelled by a series of explosions of atomic bombs behind the… … Wikipedia
Dental radiography — Intervention ICD 9 CM 87.0 87.1 Dental radiographs, commonly referred to as X ray films, or … Wikipedia
Van Allen radiation belt — Van Allen radiation belts The Van Allen radiation belt is a torus of energetic charged particles (plasma) around Earth, which is held in place by Earth s magnetic field. It is believed that most of the particles that form the belts come from… … Wikipedia
Avgas — is a high octane aviation fuel used for aircraft and racing cars. Avgas is a portmanteau for aviation gasoline, as distinguished from mogas (motor gasoline), which is the everyday gasoline used in cars. Avgas is used in aircraft that use piston… … Wikipedia
O'Neill cylinder — The O Neill cylinder also called Island Three is a space habitat design proposed by physicist Gerard K. O Neill in his book, The High Frontier . In the book O Neill proposes the colonization of space for the 21st century, using materials from the … Wikipedia
Diagnostic board — In electronic systems a diagnostic board is a specialized device with diagnostic circuitry on a printed circuit board that connects to a computer or other electronic equipment replacing an existing module, or plugging into an expansion card slot … Wikipedia
Old West, Dickinson College — U.S. National Register of Historic Places U.S. National Historic Landmark … Wikipedia
Island Three — For fictional structures for living in space, see Space stations and habitats in popular culture. Artist s depiction of a pair of O Neill cylinders. The O Neill cylinder (also called an Island Three habitat) is a space settlement design proposed… … Wikipedia
Gas metal arc welding — RMD redirects here. RMD may also refer to IRA Required Minimum Distributions. Gas metal arc welding … Wikipedia
Electronic article surveillance — For the electronic version of a journal article, see electronic article. Electronic article surveillance (EAS) is a technological method for preventing shoplifting from retail stores or pilferage of books from libraries. Special tags are fixed to … Wikipedia
international relations — a branch of political science dealing with the relations between nations. [1970 75] * * * Study of the relations of states with each other and with international organizations and certain subnational entities (e.g., bureaucracies and political… … Universalium