approacher
名词 n.
英文释义
名词 n.
-
Someone or something that approaches.
— The monkeys’ calls warn other animals of approachers.
-
An asteroid on a near-Earth trajectory.
— Extensive upgrades to the Arecibo antenna will be completed this spring, providing dozens of Toutatis-quality detections per year, spacecraft-quality images of the closest approachers, and hundred-pixel images of dozens of main-belt asteroids ( 9 ).
词形变化
词源
From approach + -er.
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数据来源: Wiktionary