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81Material derivative — The material derivative[1][2] is a derivative taken along a path moving with velocity v, and is often used in fluid mechanics and classical mechanics. It describes the time rate of change of some quantity (such as heat or momentum) by following… …
82Material ortótropo — La madera es un ejemplo de un material ortótropo: sus propiedades en tres direcciones perpendiculares (axial, radial y circunferencial) son diferentes. Un material ortótropo tiene dos o tres ejes ortogonales entre sí, de doble simetría rotacional …
83material — Important; more or less necessary; having influence or effect; going to the merits; having to do with matter, as distinguished from form. Representation relating to matter which is so substantial and important as to influence party to whom made… …
84material — Important; more or less necessary; having influence or effect; going to the merits; having to do with matter, as distinguished from form. Representation relating to matter which is so substantial and important as to influence party to whom made… …
85For Better or For Worse — This article is about the comic strip. For the documentary, see For Better or For Worse (film). For other uses, see For better or worse (disambiguation). For Better or For Worse The Patterson family, the center focus of For Better or For Worse …
86Material transfer agreement — A Material Transfer Agreement (MTA) is a contract that governs the transfer of tangible research materials between two organizations, when the recipient intends to use it for his or her own research purposes. The MTA defines the rights of the… …
87Material handling equipment — Industrial mezzanine. Selective pallet rack is an example of storage and handli …
88Material — Not to be confused with Materiel. For other uses, see Material (disambiguation). Material is anything made of matter, constituted of one or more substances. Wood, cement, hydrogen, air and water are all examples of materials. Sometimes the term… …
89Material safety data sheet — An example MSDS in a US format provides guidance for handling a hazardous substance and information on its composition and properties. MSDS redirects here. For the video game, see MapleStory DS. A Material Safety Data Sheet (MSDS) (also known as… …
90material — [[t]mətɪ͟əriəl[/t]] ♦♦ materials 1) N VAR A material is a solid substance. ...electrons in a conducting material such as a metal. ...the design of new absorbent materials. ...recycling of all materials. 2) N MASS Material is cloth. ...the thick… …
