ตัวกรองผลการค้นหา
คลิกที่แต่ละคำเพื่อดูรายละเอียด
(english) A mark transferred to the strip surface from a defective process roll. Similar to dent or punchmark.
(english) A process carried out usually in a controlled furnace atmosphere, so surface does not oxidize, remaining bright.
(english) The changing of the passive surface of a metal to a chemically active state. Contrast with passivation.
(Concrete Engineering) A process in which thin flakes of matrix or mortar are broken away from concrete surface; caused by adherence of surface mortar-to forms as forms are removed, or to trowel or float in portland cement plaster.
(Environmental Engineering) Consumed or used water from a municipality or industry that contains dissolved and/or suspended matter.
(Environmental Engineering) The water that flows overland to lakes or streams during and shortly after a precipitation event.
เขตน้ำดูดซึม : บริเวณที่น้ำในดินเป็นน้ำดูดซึม (capillary water) ซึ่งมีความดันน้อยกว่าความดันบรรยากาศ
(Concrete Engineering) Development of relatively small cavities in a concrete surface, due to phenomena such as cavitation or corrosion.
(english) The process of annealing in a protective atmosphere so as to prevent discoloration of the bright surface desired.
(english) A thin film of phosphate pretreatment applied to a steel surface (bare or zinc coated) to enhance paintability.
(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.
(Environmental Engineering) The amount of oxygen required to oxidize any organic matter in the water using harsh chemical conditions.