compression coating
61Tweeter — A tweeter is a loudspeaker designed to produce high frequencies, typically from around 2,000 hertz to 20,000 hertz (20,000 Hz, generally considered to be the upper limit of the human hearing). A few tweeters can manage response up to an octave or …
62Cylinder (engine) — Illustration of an engine cylinder with a cross section view of the piston, connecting rod, valves and spark plug. A cylinder is the central working part of a reciprocating engine or pump, the space in which a piston travels. Multiple cylinders… …
63Ford Modular engine — Manufacturer Ford Motor Company Also called Ford Triton Lincoln InTech Ford Coyote …
64Glass-to-metal seal — Glass to metal seals are a very important element of the construction of vacuum tubes, electric discharge tubes, incandescent light bulbs, glass encapsulated semiconductor diodes, reed switches, pressure tight glass windows in metal cases, and… …
65environmental works — ▪ civil engineering Introduction infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations …
66Vacuum tube — This article is about the electronic device. For experiments in an evacuated pipe, see free fall. For the transport system, see pneumatic tube. Modern vacuum tubes, mostly miniature style In electronics, a vacuum tube, electron tube (in North… …
67Barbed wire — For other uses, see Barb wire (disambiguation). A close up view of a barbed wire barb …
68Excipient — An excipient is an inactive substance used as a carrier for the active ingredients of a medication. In many cases, an active substance (such as aspirin) may not be easily administered and absorbed by the human body; in such cases the substance in …
69Ice hockey stick — An ice hockey stick is a piece of equipment used in ice hockey to shoot, pass, and carry the puck. Ice hockey sticks are approximately 150 200 cm long, composed of a long, slender shaft with a flat extension at one end called the blade. The blade …
70Ducati Hypermotard — Manufacturer Ducati Production Since 2007 Class Supermotard …
