The tools and techniques used in the horizontal directional drilling (HDD) process are an. outgrowth of the oil well drilling industry. The components of a horizontal drilling rig used for. pipeline construction are similar to those of an oil well drilling rig with the major exception being. that a horizontal drilling rig is equipped with an inclined ramp as opposed to a vertical mast. HDD.
A kilocalorie, or Kcal in abbreviated form, is a measurement of the amount of energy in the foods you eat. Low-energy foods have a relatively small amount...
Per gram: Carbs 4 kcal; Protein 4 kcal; sugar 4 kcal (sugars are a carbohydrate, that is why they are also 4 kcal per gram; Fats 9 kcal; Fiber 2 kcal; Alcohol 7 kcal; Some differ from each other because they have a different molecule structure that makes them more compact (for example fats) and this allows them to store more energy.