| 单词 | 微米 |
| 释义 | 微米 And a third group, based in Europe, described a similar technique to NIST's but the holograms made were on the micro-scale as opposed to the nano. But those who regularly participated in outdoor physical activity had retinal blood vessels that were2.2 microns wider. But until now, the movements have always been restricted to very small scales, typically across distances of a few hundred micrometers, and mostly in liquids. The electronics industry is taking advantage of micro and nano- fabrication technology by using it in bio- technology sensing, optical filtering and light control components. Red aurora are generated by light emitted at a longer wavelength0.630 micrometers, and other colors such as blue and purple are also sometimes observed. The lidars scanned the approaching winds with a laser that produced infra-red light with a wavelength of1.55 microns. And only this month it was discovered, by looking at the beads in an electron microscope, that they are chock full of diamonds a micron or less across. The ions,40 micrometers apart, float above the surface of the trap. However, its use in scientific studies has been limited because it can’t image anything smaller than several cubic micrometers. The Suntech researchers developed a way to chemically treat the silicon wafer in narrow bands.These treated areas attract silver, which forms metal lines just20 micrometers wide. This is carbonised by heating it in multiple stages to leave individual carbon fibres just seven microns0.007 millimetres thick. The microspheres' diameters vary from60 to100 micrometers. Water droplets in fog are very small, typically between1 to50 micronsone- millionth of a metre across. Aerosol particles smaller than2.5 micrometers pose the greatest risk to human health because they are small enough to be breathed deep into the lungs and, in some cases, enter the blood stream. The reason for choosing1.23 microns for the thickness of the silver is that it is twice the average wavelength of visible light. Studies of ash captured from the air show that for every one of the largest particles about300 microns there are a million or more in the2 micron range. A micrometer is one thousandth of one millimeter. A250- micron- thick, sponge-like membrane separates the plates and holds the organic carbonate electrolyte through which the charged lithium ions flow. The southwest Iranian city of Ahvaz walked away with the unfortunate distinction of having the highest measured level of airborne particles smaller than10 micrometers. A plot of over one million of the brightest“ extended sources” detected by the Two Micron All Sky Survey 2MASS shows that they are not. This verifies that antennas, radio chips, control circuitry, and micrometre-scale light sources can be integrated into a contact lens and operated on live eyes. These channels, which have a diameter of50 microns about the width of a human hair are etched using standard silicon fabrication. The speckle is a scattering of light caused by micron- sized ridges and groves on an object's surface. Since then the researchers have reduced the bead’s size to about250 micrometres. In recent years Dr Friend has built successively smaller versions of his motor—the current version is250 micrometres in diameter. |
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