(Redirected from Emphysema) Chronic obstructive pulmonary disease (COPD) is a type of obstructive lung disease characterized by long-term poor airflow. The main symptoms include shortness of breath and cough with sputum production. COPD is a progressive disease, meaning it typically worsens over time.
(January 2010). A belt sander is a sander used in shaping and finishing wood and other materials. It consists of an electric motor that turns a pair of drums on which a continuous loop of sandpaper is mounted. Belt sanders may be handheld and moved over the material, or stationary (fixed), where the material is moved to the sanding belt. Stationary belt sanders are sometimes mounted on a work bench, in which case they are called bench sanders.
Belting (or vocal belting) is a specific technique of singing by which a singer brings their chest register above its natural passaggio (break) at a loud volume; instead, an alternative production is developed, often described and felt as supported and sustained yelling.