welding characteristics
71Argon — This article pertains to the chemical element. For other uses, see Argon (disambiguation). Argon (pronEng|ˈɑrgɒn) is a chemical element designated by the symbol Ar. Argon has atomic number 18 and is the third element in group 18 of the periodic… …
72Diamond — This article is about the mineral. For the gemstone, see Diamond (gemstone). For other uses, including the shape ◊, see Diamond (disambiguation) …
73Pipe (material) — A pipe is a tube or hollow cylinder used to convey materials or as a structural component. The terms pipe and tube are almost interchangeable. A pipe is generally specified by the internal diameter (ID) whereas a tube is usually defined by the… …
74BMP-1 variants — This is a complete list of variants and designations of the BMP 1 infantry fighting vehicle. It is sorted by country of origin. Variants Former USSRInfantry fighting vehicles* BMP (Ob yekt 764) Original main prototype of BMP 1 developed by the… …
75Spud gun (cannon) — This article is about pipe based cannons and similar which use air pressure, or combustion of a gaseous fuel, or both, to launch large projectiles at low speed. They are in two types: * To fire whole potatoes. These launchers are built and fired… …
76Oxygen plant — Oxygen absorption plants is the modern non cryogenic gas separation system. Plants based on absorption and sometimes membrane technology. Contents 1 Application 2 Adsorption technology 2.1 Adsorption principle …
77Thompson submachine gun — Tommy gun redirects here. For other uses, see Tommy gun (disambiguation). For the Anti Aircraft gun nicknamed Chicago Piano, see 1.1 /75 caliber gun. Thompson Submachine Gun, Caliber .45 Wartime production variant …
78Shelf life — This pack of diced pork says display until 7 May and use by 8 May …
79Cushioning — Package cushioning is used to help protect fragile items during shipment. It is common for a transport package to be dropped, kicked, and impacted: These events may produce potentially damaging shocks. Transportation vibration from conveyors,… …
80laser — /lay zeuhr/, n. Physics. a device that produces a nearly parallel, nearly monochromatic, and coherent beam of light by exciting atoms to a higher energy level and causing them to radiate their energy in phase. Also called optical maser. [1955 60; …
