Compass | 合法醫療器材資訊網
AmongtheFourGreatInventions,themagneticcompasswasfirstinventedasadevicefordivinationasearlyastheChineseHanDynasty(sincec.
Instrument used for navigation and orientation
This article is about the direction finding instrument used in navigation. For other uses, see Compass (disambiguation). A modern military compass, with included sight device for aligningA compass is a device that shows the cardinal directions used for navigation and geographic orientation. It commonly consists of a magnetized needle or other element, such as a compass card or compass rose, which can pivot to align itself with magnetic north. Other methods may be used, including gyroscopes, magnetometers, and GPS receivers.
Compasses often show angles in degrees: north corresponds to 0°, and the angles increase clockwise, so east is 90°, south is 180°, and west is 270°. These numbers allow the compass to show azimuths or bearings which are commonly stated in degrees. If local variation between magnetic north and ...
Compass | 合法醫療器材資訊網
Compass Invention | 合法醫療器材資訊網
compass | 合法醫療器材資訊網
Compass | 合法醫療器材資訊網
History of Compass | 合法醫療器材資訊網
History of the compass | 合法醫療器材資訊網
Smith College Museum of Ancient Inventions | 合法醫療器材資訊網
WHO INVENTED THE COMPASS? | 合法醫療器材資訊網
Who invented the magnetic compass? Navigating the timeline ... | 合法醫療器材資訊網
【絕緣電極注入針】許可證字號:衛署醫器輸字第003911號
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【絕緣電極注入針】許可證字號:衛署醫器輸字第004941號
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