- positional cylinder
- 定位缸, 多位缸
English-Chinese dictionary. 2013.
English-Chinese dictionary. 2013.
positional master keying — n. a method of master keying typical of certain binary type disc tumbler key in knob looks and of magnetic and dimple key cylinders. Of all possible tumbler positions within a cylinder, only a limited number contain active tumblers. The… … Locksmith dictionary
Liquid crystal — Schlieren texture of liquid crystal nematic phase Liquid crystals (LCs) are a state of matter that have properties between those of a conventional liquid and those of a solid crystal.[1] For instance, an LC may flow like a liquid, but its… … Wikipedia
angiosperm — /an jee euh sperrm /, n. Bot. a plant having its seeds enclosed in an ovary; a flowering plant. Cf. gymnosperm. [ANGIO + SPERM] * * * ▪ plant Introduction any member of the more than 300,000 species of flowering plants (division Anthophyta) … Universalium
Printed circuit board milling — is the process of removing areas of copper from a sheet of printed circuit board material to recreate the pads, signal traces and structures according to patterns from a digital circuit board plan known as a layout file. Similar to the more… … Wikipedia
mathematics — /math euh mat iks/, n. 1. (used with a sing. v.) the systematic treatment of magnitude, relationships between figures and forms, and relations between quantities expressed symbolically. 2. (used with a sing. or pl. v.) mathematical procedures,… … Universalium
military technology — Introduction range of weapons, equipment, structures, and vehicles used specifically for the purpose of fighting. It includes the knowledge required to construct such technology, to employ it in combat, and to repair and replenish it.… … Universalium
Speedometer — [ thumb|300px| An animation of an Aston Martin speedometer, showing how an eddy current speedometer indicates the vehicle s speed.] A speedometer is a device that measures the instantaneous speed of a land vehicle. Now universally fitted to motor … Wikipedia
Alidade — An alidade (archaic forms include alhidade, alhidad, alidad) is a device that allows one to sight a distant object and use the line of sight to perform a task. This task can be, for example, to draw a line on a plane table in the direction of the … Wikipedia
Criticism of NASCAR — The National Association for Stock Car Auto Racing (NASCAR) is the sanctioning body for the Sprint Cup, the Nationwide Series and the Camping World Truck Series. NASCAR also oversees NASCAR Regional Racing, the Whelen Modified Tour, and the… … Wikipedia
Geometric dimensioning and tolerancing — (GD T) is a system for defining and communicating engineering tolerances. It uses a symbolic language on engineering drawings and computer generated three dimensional solid models for explicitly describing nominal geometry and its allowable… … Wikipedia
Pocket watch — This article is about the portable timepiece. For the Dave Grohl album, see Pocketwatch (album). A gold pocket watch with hunter case and watch chain … Wikipedia