longitude• The time signals must originate from places of known latitude and longitude.• The town is at longitude 21° east.• In the course of their struggle to find longitude, scientists struck upon other discoveries that changed their view of the universe.• Perhaps there was a way to read longitude in the relative positions of the celestial bodies.
Originlongitude
(1300-1400)Latinlongitudo“length”, from longus“long”
VERB + LONGITUDE | PREPOSITION | PHRASESVERB + LONGITUDE➤calculate, determine計算/測定經度◇He tried to find out how a ship at sea could determine its longitude.他試圖弄清海上船隻如何才能測定出所在位置的經度。PREPOSITION➤at (a) longitude在經度上◇The town is at longitude 28° west.這個鎮位於西經 28 度。PHRASES➤a line of longitude經線◇This line of longitude cuts through the jungle.這條經線穿過叢林地帶。