Metric equivalents are based upon one of two nearly equivalent systems. Above alternative equivalent formulas allow shorter implementation. Sonar is the name given to the acoustic equivalent of radar. This was achieved with the help of equivalent and largely vocational qualifications. The unit used is megatonnes of carbon dioxide equivalent (MtCOe). There are several definitions of "R" that are only sometimes equivalent. The modern equivalent of kavatam is not known. Treatment with a second equivalent of aniline would give a triazene. This is displayed on tires beside its metric equivalent. No cellular damage was observed following exposure to incandescent light of equivalent intensity. Shares are based on data expressed in tonnes oil equivalent. CNPC holds proven reserves of of oil equivalent. A variety of trigonometrically equivalent formulas have been published. The function is said to be ""asymptotically equivalent" to , as ". FTE stands for full-time equivalent (one work year).