| 单词 | axis of rotation |
| 释义 | axis of rotation (once / 85648 pages) n WORD FAMILY axis of rotation USAGE EXAMPLESSome flattened, squashing themselves along the axis of rotation where gravity is not balanced by centrifugal force. Carl Sagan, Cosmos(1980) Each instrument had to be aligned with the earth’s axis of rotation and measures movement in three dimensions, according to a press release from NWOSU. Washington Times(Feb 01, 2016) The passage around the star is not a perfect circle and over time our planet's axis of rotation also rocks back and forth. BBC(Jan 13, 2016) n the center around which something rotates Syn|Hypo|Hyper axis pin, pivot axis consisting of a short shaft that supports something that turns rotor head, rotor shaftthe axis around which the major rotor of a helicopter turns fulcrumthe pivot about which a lever turns pintlea pin or bolt forming the pivot of a hinge mechanism device consisting of a piece of machinery; has moving parts that perform some function |
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