ผลการค้นหา

Reversible reaction

แปลว่า(Environmental Engineering) A reaction in which the reactant(s) proceed to product(s), but the products react at an appreciable rate to reform reactant(s).

reaction

แปลว่าแรงปฏิกิริยา

Reaction:

แปลว่า(english) A reaction is a force exerted by a support on an object: sometimes called support reaction. Using this definition, a reaction is an external force.

reversible booster

แปลว่าเครื่องเพิ่มกำลังหรือลดกำลังของแรงเคลื่อนในสายไฟวงจร

reversible motor

แปลว่าเครื่องยนต์ซึ่งสามารถปรับทิศทางการหมุน ให้อยู่ในด้านตรงข้ามได้

Alkali-Aggregate Reaction

แปลว่า(Concrete Engineering) Older terminology for Alkali-Silica Reactivity (ASR).

Elementary reaction

แปลว่า(Environmental Engineering) A reaction in which the rate expression corresponds to the stoichiometric equation.

Irreversible reaction

แปลว่า(Environmental Engineering) A reaction in which the reactant(s) proceed to product(s), but the products react at an appreciable rate to reform reactant(s).

modulus of subgrade reaction

แปลว่าโมดูลัสการต้านแรงกดของชั้นดิน

Support:

แปลว่า(english) A support contributes to keeping a structure in place by restraining one or more degrees of freedom. In a structural model, supports represent boundary entities which are not included in the model itself, e.g., foundations, abutments, or the earth itself. For each restrained translation degree of freedom at a support, there is a corresponding reaction force; for each restrained rotation degree of freedom, there is a reaction moment.

Carbonation

แปลว่า(Concrete Engineering) 1) Reaction between the products of portland cement (soluble calcium hydroxides), water and carbon dioxide to produce insoluble calcium carbonate (efflorescence). 2) Soft white, chalky surface dusting of freshly placed, unhardened concrete caused by carbon dioxide from unvented heaters or gasoline powered equipment in an enclosed space. 3) Carbonated, dense, impermeable to absorption, top layer of the surface of concrete caused by surface reaction to carbon dioxide. This carbonated layer becomes denser and deeper over a period of time. 4) Reaction with carbon dioxide which produces a slight shrinkage in concrete. Improves chemical stability. Concrete masonry units during manufacturing may be deliberately exposed to carbon dioxide after reaching 80% strength to induce carbonation shrinkage to make the units more dimensionally stable. Future drying shrinkage is reduced by as much as 30%.

ASR - Alkali-Silica Reactivity

แปลว่า(Concrete Engineering) The reaction of aggregates, which contain some form of silica or carbonates with sodium oxides or potassium oxides in cement, particularly in warm, moist climates or environments, causing expansion, cracking or popouts in concrete.