goniometern.
英 ,gəʊnɪ'ɒmɪtə | 美 ,gonɪ'ɑmɪtɚ
中文n. 测角器，[仪] 角度计
词根词源
goniometer (n.)instrument for measuring solid angles, 1766, from Greek gonia "corner, angle," from PIE root *genu- (1) "knee; angle" (see knee (n.)) + -meter. Related: Goniometry.
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