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...
kilocalorie - a unit of heat equal to the amount of heat required to raise the temperature of one kilogram of water by one degree at one atmosphere pressure; used by nutritionists to characterize the energy-producing potential in food. kilocalorie.