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Sawfiler — A sawfiler is a person who maintains and repairs saws in a saw mill. A sawfiler s work area in the mill is called the filing room.Saws used in timber mills are very large and expensive. They need careful maintenance for safe operation. Repair of… … Wikipedia
Cavitation — is defined as the phenomenon of formation of vapour bubbles of a flowing liquid in a region where the pressure of the liquid falls below its vapour pressure. Cavitation is usually divided into two classes of behavior: inertial (or transient)… … Wikipedia
Poppet valve — A poppet valve is a valve consisting of a hole, usually round or oval, and a tapered plug, usually a disk shape on the end of a shaft also called a valve stem. The shaft guides the plug portion by sliding through a valve guide. In most… … Wikipedia

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