ตัวกรองผลการค้นหา
chemical welding
แปลว่าการเชื่อมโลหะไฟฟ้าด้วยวิธีใช้ประสานด้วยเคมี
Activation
แปลว่า(english) The changing of the passive surface of a metal to a chemically active state. Contrast with passivation.
CFCs
แปลว่า(Environmental Engineering) Chlorofluorocarbons, chemicals which result in a depletion of the ozone layer in the upper atmosphere.
Zn
แปลว่า(english) Chemical symbol for Zinc
Zr
แปลว่า(english) Chemical symbol for Zirconium
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.
Biosynthesis
แปลว่า(Environmental Engineering) Catabolism, the production of new cellular materials from other organic or inorganic chemicals.
Pozzolan (ASTM C 618)
แปลว่า(Concrete Engineering) A siliceous, or siliceous and aluminous material, which in itself possesses little or no cementitious value but will, in a finely divided form, such as a powder or liquid and in the presence of moisture, chemically react with calcium hydroxide at ordinary temperatures to form permanent, insoluble compounds possessing cementitious properties.
electrochemical
แปลว่าซึ่งเป็นปฏิกริยาทางเคมีอันเกิดจากกระแสไฟฟ้า
Ultimate biochemical oxygen demand (BODu)
แปลว่า(Environmental Engineering) The total amount of oxygen required to oxidize any organic matter present in a water, i.e. after an extended period, such as 20 or 30 days.
Aging 2
แปลว่า(english) A change in properties that occurs at ambient or moderately elevated temperatures after hot working or a heat treating operation (quench aging in ferrous alloys), or after a cold working operation (strain aging). The change in properties is often, but not always, due to a phase change (precipitation), but does not involve a change in chemical composition. In a metal or alloy, a change in properties that generally occurs slowly at room temperature and more rapidly at higher temperatures.
Anabolism
แปลว่า(Environmental Engineering) Biosynthesis, the production of new cellular materials from other organic or inorganic chemicals.