eta meaning, definition, what is eta: the seventh letter of the Greek alphabet. Learn more.
shafts definition, shafts meaning | English dictionary. shaft. 1 the long narrow pole that forms the body of a spear, arrow, etc. 4 a rod or pole forming the handle of a hammer, axe, golf club, etc.
Shafts are equipped with skips, cages, rail or conveyor transportation, andâduring the construction stageâbuckets. The upper portion of the shaft has an opening from the earthâs surface called the mouth or collar; the lower portion, below the level of the pit bottom, is called the sump.The shafts usually have a round cross section, although rectangular and, less frequently, elliptic shafts are also found.hafts are equipped with skips, cages, rail or conveyor transportation, andâduring the construction stageâbuckets. The upper portion of the shaft has an opening from the earthâs surface called the mouth or collar; the lower portion, below the level of the pit bottom, is called the sump.