Nautical Mile: A unit of distance used in navigation—one minute of longitude measured along the Equator. A Nautical Mile is approximately equal to 6,080 feet.
Pressure: The pressure is expressed in pounds weight per sq cm. The pressure of the atmosphere is expressed in millibars. One millibar = 1 dyne per sq cm. If the pressures are very high, they are expressed in multiples of atmospheric pressure. One atmospheric pressure is a pressure exerted by a column of mercury 76 cm high at sea level and at a latitude of 45°.
Quintal: Metric measure of weight; 100 kilograms = 1 quintal.
