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The Oxford English Dictionary has a definition of "bag" as "A measure of quantity for produce, varying according to the nature of the commodity" and has quotations illustrating its use for hops in 1679, almonds in 1728 (where it is defined by weight as "about 3 Hundred Weight" i.e. 336 pounds (152 kg) in Imperial units) and potatoes in 1845 ...
For practice there were also a 25-pound (11 kg) mild steel semi-armour-piercing warhead, a 25-pound (11 kg) concrete practice head [7] and a 27.2 kg (60.0 lb) concrete practice head. [5] Once the rocket had been mounted on the rails, an electrical lead (or "pigtail") connected the rocket to the firing controls.
The most common use for portland cement is in the production of concrete. [17] Concrete is a composite material consisting of aggregate (gravel and sand), cement, and water. As a construction material, concrete can be cast in almost any shape desired, and once hardened, can become a structural (load bearing) element.
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Concrete is a composite material composed of aggregate bonded together with a fluid cement that cures to a solid over time. Concrete is the second-most-used substance in the world after water, [1] and is the most widely used building material. [2] Its usage worldwide, ton for ton, is twice that of steel, wood, plastics, and aluminium combined. [3]
The 300 pound weight capacity is in line with most of the walkers we found, but we were especially impressed with the adjustable handlebars that accommodate heights from 4'3" to 6'2". Some other ...