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...
The second is the large calorie or kilogram calorie (symbol: Cal), also known as the food calorie and similar names, is defined in terms of the kilogram rather than the gram. It is equal to 1000 small calories or 1 kilocalorie (symbol: kcal).