- tool stones
- штучные алмазы высокого качества
Большой англо-русский и русско-английский словарь. 2001.
tool stones
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Tool stone — In archaeology, a tool stone is a type of stone that is used to manufacture stone tools. Generally speaking, tools that require a sharp edge are made using cryptocrystalline materials that fracture in an easily controlled conchoidal manner.… … Wikipedia
Tool use by animals — Some animals, especially primates, use tools to perform simple tasks such as getting food or grooming. Types of Tools There are some different definitions of a tool, such as: The most common are sticks or bits of stone. Uses Tool use implies an… … Wikipedia
Tool — For other uses, see Tool (disambiguation). A modern toolbox. A tool is a device that can be used to produce an item or achieve a task, but that is not consumed in the process. Informally the word is also used to describe a procedure or process… … Wikipedia
Stones of India — India possesses a wide spectrum of dimensional stones that include granite, marble, sandstone, limestone, slate, and quartzite, spread out all over the country. India is also amongst the largest producer of raw stone material and the sector is… … Wikipedia
tool — 01. An English English dictionary is an important [tool] for the second language learner. 02. Could you reach into my [tool] box, and grab me a hammer? 03. Audio tapes are an essential [tool] in the teaching of a foreign language. 04. Jasper… … Grammatical examples in English
hand tool — any tool or implement designed for manual operation. * * * Introduction any of the implements used by craftsmen in manual operations, such as chopping, chiseling, sawing, filing, or forging. Complementary tools, often needed as auxiliaries to… … Universalium
machine tool — machine tooled, adj. a power operated machine, as a lathe, used for general cutting and shaping of metal and other substances. [1860 65] * * * Stationary, power driven machine used to cut, shape, or form materials such as metal and wood. Machine… … Universalium
flake tool — a Paleolithic or later stone tool made from a flake struck from a larger core. [1945 50] * * * Stone Age devices, usually flint (see chert and flint), shaped by flaking off small particles or by breaking off a large flake to use as a tool.… … Universalium
Stone tool — A stone tool is, in the most general sense, any tool made of stone. Although stone tool dependent cultures exist even today, most stone tools are associated with prehistoric societies that no longer exist.The study of stone tools is often called… … Wikipedia
stone-tool industry — Any of several assemblages of artifacts that display the earliest technology used by humans. These stone tools have survived in great quantities and now serve as the major means of determining hominid activities. Archaeologists have classified… … Universalium
Edge tool — Edge Edge ([e^]j), n. [OE. eg, egge, AS. ecg; akin to OHG. ekka, G. ecke, Icel. & Sw. egg, Dan. eg, and to L. acies, Gr. akh point, Skr. a[,c]ri edge. [root]1. Cf. {Egg}, v. t., {Eager}, {Ear} spike of corn, {Acute}.] 1. The thin cutting side of… … The Collaborative International Dictionary of English
