جستجو
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Density
01
چگالی (فیزیک)
(physics) the degree to which a substance is compacted, measured by dividing its mass by its volume
مثالها
Air has a much lower density compared to water, which is why objects float in water but fall through air.
هوا چگالی بسیار کمتری در مقایسه با آب دارد، به همین دلیل اشیاء در آب شناور میشوند اما در هوا سقوط میکنند.
02
چگالی, تمرکز
the spatial property of having elements packed closely together, typically expressed as the number of units per given area or volume
مثالها
The forest survey measured tree density at 550 specimens per hectare.
بررسی جنگل تراکم درختان را در ۵۵۰ نمونه در هکتار اندازهگیری کرد.
03
تراکم نور
the degree to which light is blocked or absorbed by a photographic filter or film, usually measured in stops or optical density units
مثالها
The technician calibrated the density of the photographic plate.
