polishing treatment
51Die-deterioration doubling — Numismatics Terminology Portal Currency …
52Synthetic diamond — Synthetic diamonds of various colors grown by the high pressure high temperature technique Synthetic diamond is diamond produced in a technological process; as opposed to natural diamond, which is created in geological processes. Synthetic… …
53Car wash — For other uses, see Car wash (disambiguation). Studio City Hand Car Wash, Studio City, California A car wash (also written as carwash ) or auto wash is a facility used to clean the exterior and, in some cases, the interior of motor vehicles …
54Parts cleaning — is essential to many industrial processes, as a prelude to surface finishing or to protect sensitive components. Electroplating is particularly sensitive to part cleanliness, since molecular layers of oil can prevent adhesion of the coating. ASTM …
55education — /ej oo kay sheuhn/, n. 1. the act or process of imparting or acquiring general knowledge, developing the powers of reasoning and judgment, and generally of preparing oneself or others intellectually for mature life. 2. the act or process of… …
56silicosis — silicotic /sil i kot ik/, adj. /sil i koh sis/, n. Pathol. a disease of the lungs caused by the inhaling of siliceous particles, as by stonecutters. [1890 95; SILIC(A) + OSIS] * * * Common pneumoconiosis caused by long term inhalation of silica… …
57Huygens, Christiaan — or Christian Huyghens born April 14, 1629, The Hague died July 8, 1695, The Hague Dutch mathematician, astronomer, and physicist. He was the first to use a pendulum to regulate a clock (1656). He invented a method of grinding and polishing… …
58Plasma nitriding — or ion nitriding (sometimes also called plasma ion nitriding) or glow discharge nitriding, is an industrial surface hardening treatment for metallic materials.DescriptionA plasma is the fourth state of matter, the other three being solid, liquid… …
59Cephalometric analysis — is the study of the dental and skeletal relationships in the head.[1] It is frequently used by dentists, often orthodontists in particular, as a treatment planning tool.[2] Two of the more popular methods of analysis used in orthodontology are… …
60Dentistry — This article is about dental science. For the profession see Dentist. For tooth care see oral hygiene and dental surgery. Dentist Occupation Activity sectors Medicine …
