单词	astronomical triangle
释义	astronomical triangle The spherical triangle formed by joining the observer's elevated pole, his zenith, and the position of the body on the celestial sphere.
随便看	beam assembly teleoperator beam-assisted scanning tunneling microscope be a mass of be a mass of (something) be a mass of something beam attack beam attenuator be a matter of be a matter of (doing something) be a matter of doing something be a matter of opinion be a matter of record be a matter of something be a matter of something/doing something beam axis beam axle beam balance beam-balanced pump beam-based alignment beambird beam blocking beam bolster beam bottom beam box beam bracketing

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