full diameter drilling
81Milling machine — For the machine used in road construction, see Asphalt milling machine. Not to be confused with mill (grinding). Example of a bridge type CNC vertical milling center …
82Silicosis — Classification and external resources ICD 10 J62 ICD 9 502 …
83Balance board — A balance board is a device used for recreation, athletic training, brain development, therapy, musical training and other kinds of personal development. It is a lever, similar to a see saw, that the user usually stands on, usually with the left… …
84Discovery One — Discovery launching an EVA pod First appearance 2001: A Space Odyssey Affiliation …
85Offshore concrete structure — Offshore concrete structures have been in use successfully for about 30 years. They serve the same purpose as their steel counterparts in the oil and gas production and storage. The first concrete oil platform has been installed in the North Sea… …
86Maraetai Power Station — Maraetai Power Station …
87Bowling ball — A bowling ball is a round ball made from, urethane, plastic, reactive resin or a combination of these materials which is used in the sport of bowling. Ten pin bowling balls generally have a set of three holes drilled in them, one each for the… …
88North America — North American. the northern continent of the Western Hemisphere, extending from Central America to the Arctic Ocean. Highest point, Mt. McKinley, 20,300 ft. (6187 m); lowest, Death Valley, 276 ft. (84 m) below sea level. 400,000,000 including… …
89Chernobyl disaster — This article is about the 1986 nuclear plant accident in Ukraine. For other uses, see Chernobyl (disambiguation). Chernobyl disaster …
90Metalworking — Machining a bar of metal on a lathe. Metalworking is the process of working with metals to create individual parts, assemblies, or large scale structures. The term covers a wide range of work from large ships and bridges to precise engine parts… …
