- differential indexing head
- 差动分度头
English-Chinese machine dictionary (英汉机械大词典). 2013.
English-Chinese machine dictionary (英汉机械大词典). 2013.
Indexing head — and tailstock set up on a milling machine s table. An indexing head, also known as a dividing head or spiral head,[1] is a specialized tool that allows a workpiece to be circularly indexed; that is, easily and precisely rotated to preset angles… … Wikipedia
head — headlike, adj. /hed/, n. 1. the upper part of the body in humans, joined to the trunk by the neck, containing the brain, eyes, ears, nose, and mouth. 2. the corresponding part of the body in other animals. 3. the head considered as the center of… … Universalium
head — [[t]hɛd[/t]] n. 1) anat. the anterior or upper part of the vertebrate body, containing the skull with mouth, eyes, ears, nose, and brain 2) zool. the corresponding part of the body in invertebrates 3) the head considered as the center of the… … From formal English to slang
Caliper — For other uses, see Caliper (disambiguation). A vernier caliper … Wikipedia
Lathe (metal) — Center lathe with DRO and chuck guard. Size is 460 mm swing x 1000 mm between centers A metal lathe or metalworking lathe is a large class of lathes designed for precisely machining relatively hard materials. They were originally designed to… … Wikipedia
computer — computerlike, adj. /keuhm pyooh teuhr/, n. 1. Also called processor. an electronic device designed to accept data, perform prescribed mathematical and logical operations at high speed, and display the results of these operations. Cf. analog… … Universalium
Matrix (mathematics) — Specific elements of a matrix are often denoted by a variable with two subscripts. For instance, a2,1 represents the element at the second row and first column of a matrix A. In mathematics, a matrix (plural matrices, or less commonly matrixes)… … Wikipedia
United States — a republic in the N Western Hemisphere comprising 48 conterminous states, the District of Columbia, and Alaska in North America, and Hawaii in the N Pacific. 267,954,767; conterminous United States, 3,022,387 sq. mi. (7,827,982 sq. km); with… … Universalium
Technical features new to Windows Vista — This article is part of a series on Windows Vista New features Overview Technical and core system Security and safety Networking technologies I/O technologies Management and administration Removed features … Wikipedia
Economic Affairs — ▪ 2006 Introduction In 2005 rising U.S. deficits, tight monetary policies, and higher oil prices triggered by hurricane damage in the Gulf of Mexico were moderating influences on the world economy and on U.S. stock markets, but some other… … Universalium
photography, technology of — Introduction equipment, techniques, and processes used in the production of photographs. The most widely used photographic process is the black and white negative–positive system (Figure 1 >). In the camera the lens projects an image of… … Universalium