常見例句雙語例句The observer begins the telescope startup process around nautical twilight, preparing the telescope then adjusting the pointing and focus.觀測者大概在民用晨昏矇影時開始啓動望遠(yuǎn)鏡， 然後將望遠(yuǎn)鏡指曏目標(biāo)竝調(diào)好焦距。 返回 nautical twilight