1. Shor, I would pronounce the h in none of your example words, and generally would be surprised to hear any American English speaker say those words with an h, American dictionariesâ pronunciation guides notwithstanding.â nohatâ¦ Jan 31 '12 at 7:37.. Shor, I would pronounce the h in none of your example words, and generally would be surprised to hear any American English speaker say those words with an h, American dictionariesâ pronunciation guides notwithstanding.
A tractor is an engineering vehicle specifically designed to deliver a high tractive effort (or torque) at slow speeds, for the purposes of hauling a trailer or machinery used in agriculture or construction.
A portable engine; a precursor to modern engineering vehicles. An early gasoline-powered tractor. The use of heavy equipment has a long history; the ancient Roman engineer Vitruvius (1st century BCE) gave descriptions of heavy equipment and cranes in ancient Rome in his treatise De architectura. The pile driver was invented around 1500. The first tunnelling shield was patented by Isambard Kingdom Brunel in 1818.