ตัวกรองผลการค้นหา
สมมูลเคมี
หมายถึงน. จำนวนเลขที่บ่งแสดงนํ้าหนักของสารที่ทำปฏิกิริยาโดยทางตรงหรือทางอ้อมได้พอดีกับ ๑.๐๐๘ หน่วยนํ้าหนักเดียวกันของธาตุไฮโดรเจน หรือกับ ๘ หน่วยนํ้าหนักเดียวกันของธาตุออกซิเจน. (อ. chemical equivalent).
Adsorption Water
แปลว่า(Concrete Engineering) Water held on surfaces in a material by either physical and/or chemical forces.
Isomers
แปลว่า(Environmental Engineering) Two or more different compounds with the same chemical formula but different structure and characteristics.
สมการเคมี
หมายถึง(เคมี) น. สมการที่เขียนขึ้นโดยอาศัยสัญลักษณ์ของธาตุ เพื่อแสดงปฏิกิริยาเคมีและปริมาณของธาตุต่าง ๆ ที่เกี่ยวข้องในปฏิกิริยาเคมีนั้น ๆ. (อ. chemical equation).
Oxidative phosphorylation
แปลว่า(Environmental Engineering) The synthesis of the energy storage compound adenosine triphosphate (ATP) from adenosine diphosphate (ADP) using a chemical substrate and molecular oxygen.
Butt-Weld Pipe
แปลว่า(english) The standard steel pipe used in plumbing. Heated skelp is passed continuously through welding rolls, which form the tube and squeeze the hot edges together to make a solid weld.
Sulfate Attack
แปลว่า(Concrete Engineering) Deleterious chemical and/or physical re-action between sulfates in ground water or soil and certain constituents in cement, which result in expansion and disruption of the concrete.
Brass
แปลว่า(english) An alloy that is 70% copper,30% zinc. One of the most widely used of the copper-zinc alloys; malleable and ductile; excellent cold-working but poor hot-working and machining properties; excellent for soft-soldering; good for silver alloy brazing or oxyacetylene welding, but fair for resistance or carbon-arc welding. Used for drawn cartridges, tubes, eyelets machine items and snap fasteners.
Blow Down
แปลว่า(english) Process that rids boiler feed water of solids and maintains the proper chemical balance of the feed water. Blow down can also be used to rid drum(s) of excess water.
Bright Dipping
แปลว่า(english) Chemical polishing of aluminum, often by treatment with a mixture of nitric acid and phosphoric acid, yielding a mirror-shiny (specular) highly reflective surface. It is almost always followed by anodizing to protect the surface and provide some choice of color.
Base Metal
แปลว่า(english) (1) The metal present in the largest proportion in an alloy; (2) the metal to be brazed, cut or welded; (3) after welding the part of the metal that was not melted during the process.
Bismuth
แปลว่า(english) Chemical symbol Bi. A soft, course cystalline heavy metal with a silvery white color and pinkish tinge; usually produced as a by-product of copper,leaad and other metals. Has a thermal conductivity lower than all other metals except mercury. Used as alloying agent but leading use is in pharmaceuticals.