grinding implement

См. также в других словарях:

• Polissoir — Po lis soir , n. [F.] 1. A polishing or grinding implement or instrument. [Webster 1913 Suppl.] 2. (Glass Making) A tool consisting of a flat wooden block with a long iron handle, used for flattening out split cylinders of blown glass. [Webster… …   The Collaborative International Dictionary of English

• Macropore — Macropores are large diameter (more than 50 nm, see macroporous materials) conduits in the soil, created by such agents as plant roots, soil cracks, or soil fauna. Macropores increase the hydraulic conductivity of the soil, allowing water to… …   Wikipedia

• Characterisation of pore space in soil — Soil is essential to most animals on the earth. It is a relatively thin crust where an even smaller portion contains much of the biological activity. Soil consists of three different phases. A solid phase (≈ 20%) that contains mainly minerals of… …   Wikipedia

• 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

• tool — tooler, n. toolless, adj. /toohl/, n. 1. an implement, esp. one held in the hand, as a hammer, saw, or file, for performing or facilitating mechanical operations. 2. any instrument of manual operation. 3. the cutting or machining part of a lathe …   Universalium

• agriculture, origins of — Introduction  the active production of useful plants or animals in ecosystems that have been created by people. Agriculture has often been conceptualized narrowly, in terms of specific combinations of activities and organisms wet rice production… …   Universalium

• Sharpening — is the process of creating or refining a sharp edge of appropriate shape on a tool or implement designed for cutting. Sharpening is done by grinding away material on the implement with an abrasive substance harder than the material of the… …   Wikipedia

• Cultivator — F210 Honda tiller 1949 Farmall C with C 254 A two row cultivator …   Wikipedia

• Churchill Machine Tool Company — The Churchill Machine Tool Company Limited Type Machine Tool Manufacturer Industry Engineering Fate Taken over, liquidated …   Wikipedia

• Cutting — For other uses, see Cutting (disambiguation). Different types of scissors sewing (left), paper (middle), kitchen (right) Cutting is the separation of a physical object, or a portion of a physical object, into two portions, through the application …   Wikipedia

• 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