Viscosity Index

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Viscosity index
Viscosity index is a petroleum industry term. It is a lubricating oil quality indicator, an arbitrary measure for the change of kinematic viscosity with temperature. The viscosity of liquids decreases as temperature increases. The viscosity of a lubricant is closely related to its ability to reduce friction. Generally, you want the thinnest liquid/oil which still forces the two moving surfaces apart. If the lubricant is too thick, it will require a lot of energy to move the surfaces (such as in honey); if it is too thin, the surfaces will rub and friction will increase.
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专业字典Download this dictionary
viscosity index
粘度指数


English Spanish dictionary by Jaime AguirreDownload this dictionary
viscosity index
índice de viscosidad - índice utilizado para establecer la tendencia de adelgazamiento del aceite a temperaturas superiores, número empírico sin unidades que indica el efecto del cambio de temperatura en la viscosidad cinemática de un aceite - entre más elevado sea el íncide de viscosidad, menor es el cambio relativo de viscosidad con la temperatura

Military English-Ukrainian Lingvistica'98 dictionaryDownload this dictionary
viscosity index
(n) індекс в'язкості; показник в'язкості
Askeri Ing-TurDownload this dictionary
viscosity index
Koyuluk göstergesi, kývam göstergesi

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