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Technology portal. v. t. e. A carbon nanotube ( CNT) is a tube made of carbon with a diameter in the nanometre range ( nanoscale ). They are one of the allotropes of carbon . Single-walled carbon nanotubes ( SWCNTs) have diameters around 0.5–2.0 nanometres, about 100,000 times smaller than the width of a human hair.
NANOMETRE翻译：毫微米，纳米。了解更多。 Thus, plasmas can induce specific surface chemistries that affect the top few tens of nanometres but generally do not change the bulk properties of the materials.
t. e. A nanoparticle or ultrafine particle is a particle of matter 1 to 100 nanometres (nm) in diameter. [1] [2] The term is sometimes used for larger particles, up to 500 nm, [citation needed] or fibers and tubes that are less than 100 nm in only two directions. [3] At the lowest range, metal particles smaller than 1 nm are usually called atom ...
Metric system. A kilogram mass and three metric measuring devices: a tape measure in centimetres, a thermometer in degrees Celsius, and a multimeter that measures potential in volts, current in amperes and resistance in ohms. The metric system is a decimal -based system of measurement. The current international standard for the metric system is ...
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Nanometer. Nanometer ( SI-symbol nm) er en måleenhed til måling af længde i metersystemet, der er det samme som en milliardtedel meter, der er den grundlæggende SI-enhed længde. Navnet kombinerer SI-præfikset nano- (fra oldgræsk νάνος, nanos, "dværg") med enheden meter (fra græsk μέτρον, metrοn, "enhed til måling").
Yellow is the color between green and orange on the spectrum of light. It is evoked by light with a dominant wavelength of roughly 575–585 nm. It is a primary color in subtractive color systems, used in painting or color printing. In the RGB color model, used to create colors on television and computer screens, yellow is a secondary color ...
