Fissures are double folds of pleura that divide the lung into lobes. There are three lobes in the right lung and two in the left lung. The lobes are further divided into segments and then into lobules, which are hexagonal divisions of the lungs that are the smallest visible subdivision.
Spectrophotometers are color measurement devices used to capture and evaluate color, including specification and communication of color, and monitoring color accuracy.
How to use a digital multmeter for voltage: One of the most widely used measurements for a DMM is that of voltage. Knowing how to use a digital multimeter to make the best voltage measurements can ensure the most accurate measurements are made. A typical digital multimeter voltage measurement.