| 词汇 | example_english_concave-mirror |
| 释义 | concave mirrorcollocation in Englishmeanings of concaveand mirrorThese words are often used together. Click on the links below to explore the meanings. Or, see other collocations with mirror. concave adjective uk /ˈkɒŋ.keɪv/ us /ˈkɑːn.keɪv/ curving ... See more at concave mirror noun uk /ˈmɪr.ər/ us /ˈmɪr.ɚ/ a piece of glass with a shiny, metal-covered back that reflects light, producing an image of whatever is in front ... See more at mirror Examples of concave mirrorThese examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. A concavemirror placed behind each amplifier converges the beam. The three-pass amplification is achieved by means of a telescope equipped with a 4.4-m radius convex mirror and a 34-mm-diameter, 1.4-m-radius concavemirror. The focal length is positive for a concavemirror, and negative for a convex mirror. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A concavemirror, such as a polished soda can bottom, can be used as well to focus the sun's rays on tinder. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It comprises a circular concavemirror, with a small hole in the middle, and is attached to a head band. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. With hand held lamps, a concavemirror is tilted by a trigger to focus the light into pulses. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. My actual esthetic is to transform the classical norms using the mathematics of the concavemirror. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It illuminates a smaller area on the concavemirror, leading to a small beam-width on the way to the flat mirror. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Because of the divergence the light is effectively coming from a point farther apart and leads to more convergence after the concavemirror. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This involved creating a set up which observed how the position of a concavemirror would affect the real object that it reflected. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. He later modified the theory to simply involve a concavemirror and a comparator mirror. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Eyerman also utilized a concavemirror to photograph the aurora borealis. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Kircher's device consisted of a lantern with a candle and concavemirror inside. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. He often painted with the aid of a concavemirror, and to obtain exactness looked at his subject through a frame crossed with squares of silk thread. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A 4f system is configured within a vacuum chamber with reflective concave mirrors. If the rays of light coming from a farther light source reflect to any point on axis of the concavemirror, they form concentric circles in that point. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In time of emergency, fire and smoke codes were used by lighting dry-cotton tinder with concave mirrors. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Concave mirrors reflect light inward to one focal point. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. For concave mirrors, whether the image is virtual or real depends on how large the object distance is compared to the focal length. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Unlike convex mirrors, concave mirrors show different image types depending on the distance between the object and the mirror. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. Want to learn more? Go to the definition of concave Go to the definition of mirror See other collocations with mirror |
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