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A leaf blower, commonly known as a blower, is a device that propels air out of a nozzle to move debris such as leaves and grass cuttings. Leaf blowers are powered by electric or gasoline motors . Gasoline models have traditionally been two-stroke engines , but four-stroke engines were recently introduced to partially address air pollution concerns.
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Long Retractable Sootblower utilizing steam as a cleaning medium. A sootblower is a device for removing the soot that is deposited on the internal furnace tubes of a boiler during combustion to prevent plugging of the gas passes and maintain boiler efficiency.
BR-350A 6.3 155 AP (solid) BR-350SP 6.5 N/A Composite Armour-piercing projectiles (muzzle velocity up to ? m/s) From April 1943 BR-350P 3.02 N/A Developed after World War II BR-350N 3.02 N/A High explosive and fragmentation shells (muzzle velocity 680 m/s) HE/Fragmentation steel OF-350 6.2 710 HE/Fragmentation steely iron OF-350A 6.2 640
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Sonic soot blower. Sonic soot blowers offer a cost-effective and non-destructive means of preventing ash and particulate build-up within the power generation industry. They use high energy – low frequency sound waves that provide 360° particulate de-bonding and at a speed in excess of 344 metres per second.
"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Dementia impacts 6.7 million Americans, and the risk of developing the devastating disease increases ...
The BS-3 remained in service into the 1950s. As of 1955 it was getting replaced in Soviet service by the T-12 antitank gun and the 85 mm antitank gun D-48.A number of BS-3 pieces are still stored in Russian Ground Forces arsenals.