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单词 navstar
释义

Navstarn.

Brit. /ˈnavstɑː/, U.S. /ˈnævˌstɑr/
Forms: 1900s– NavStar, 1900s– Navstar.
Origin: Formed within English, by compounding. Etymons: nav n.2, English satellite timing and ranging.
Etymology: < nav n.2 + the initial letters of satellite timing and ranging (after star n.1).
attributive. (The name of) a navigation satellite which transmits signals to the earth's surface as part of a global positioning system. Also: designating equipment used to receive such signals.A proprietary name in the United Kingdom.
ΚΠ
1974 Daily Courier (Connellsville, Pennsylvania) 24 June 2/1 They [sc. satellites] will be used to validate concepts of the Navstar Global Positioning System.
1985 Sci. Amer. Jan. 23/3 Navstar satellites will incorporate features designed to increase their resistance to nuclear-weapons effects.
1991 Time 4 Feb. 47 More than a dozen Navstar satellites broadcast continuous navigational data.
1994 GPS World Apr. 27/1 (advt.) Complete Navstar Systems start at under $10,000.
1999 Radioelectronics & Communications Syst. 42 xii. 42 Methods of securing high accuracy in determining navigational parameters when using the NAVSTAR and GLONASS radio navigation systems.
This is a new entry (OED Third Edition, June 2003; most recently modified version published online March 2022).
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n.1974
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更新时间:2024/12/23 2:29:29