vibratory trough

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Wave — A wave is a disturbance that propagates through space and time, usually with transference of energy. While a mechanical wave exists in a medium (which on deformation is capable of producing elastic restoring forces), waves of electromagnetic… … Wikipedia
Phonetic transcription — (or phonetic notation) is the visual representation of speech sounds (or phones). The most common type of phonetic transcription uses a phonetic alphabet, e.g., the International Phonetic Alphabet. Contents 1 Phonetic transcription versus… … Wikipedia
Mineral processing — Crushing, a form of comminution, one of the unit operations of mineral processing In the field of extractive metallurgy, mineral processing, also known as mineral dressing or ore dressing, is the process of separating commercially valuable… … Wikipedia
cat, domestic — ▪ mammal Introduction also called house cat, (species Felis catus), domesticated member of the family Felidae, order Carnivora. Like all felids, domestic cats, the smallest members of the family, are characterized by supple, low slung bodies,… … Universalium

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