| 单词 | transit |
| 释义 | transit /tran"sit, -zit/, n. , v. , transited, transiting. n. 1. the act or fact of passing across or through; passage from one place to another. 2. conveyance or transportation from one place to another, as of persons or goods, esp., local public transportation: city transit. Cf. mass transit. 3. a transition or change. 4. Astron. a. the passage of a heavenly body across the meridian of a given location or through the field of a telescope. b. the passage of Mercury or Venus across the disk of the sun, or of a satellite or its shadow across the face of its primary. c. See meridian circle. 5. Astrol. the passage of a planet in aspect to another planet or a specific point in a horoscope. 6. Survey. a. Also called transit instrument. an instrument, as a theodolite, having a telescope that can be transited, used for measuring horizontal and sometimes vertical angles. b. a repeating transit theodolite. 7. (cap.) U.S. Aerospace. one of a series of satellites for providing positional data to ships and aircraft. v.t. 8. to pass across or through. 9. Survey. to turn (the telescope of a transit) in a vertical plane in order to reverse direction; plunge. 10. Astron. to cross (a meridian, celestial body, etc.). v.i. 11. to pass over or through something; make a transit. 12. Astron. to make a transit across a meridian, celestial body, etc. [1400-50; late ME (n. and v.) < L transitus a going across, passage, equiv. to transi-, var. s. of transire to cross (trans- TRANS- + -ire to go) + -tus suffix of v. action] |
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