天球: celestial sphere; sphere两极: the two poles of the earth; ...地球两极的: bipolar地球两极地区的: bipolar平行天球(测者位于两极所见之天球: parallel sphere天球: [天文学] celestial sphere; sphere◇天球赤道 [天文学] celestial equator; equinoctial; 天球坐标 celestial coordinate两极: 1.(地球的两极) the two poles of the earth; north and south poles 两极地区 polar regions2.[物理学] (阴阳极) the two poles; both positive and negative electrodes; anode and cathode3.(两个极端; 两个对立面) polarization; division into two opposing extremes4.(分成两极) polarize; produce a polarization of; 两极分化 polarization; 两极关系 bipolar relationship; 两极轨道 polar orbit; 两极化 polarization; 两极性 bipolarity 天球瓶: vault-of-heaven vase天球仪: celestial globe; celestial sphere; star globe; cosmosphere 中国东汉科学家张衡发明的天球仪是世界上最早的天球仪。 它可以测出太阳和月亮的角直径都是0.5度, 黄赤交角为24度。 the celestial globe invented by zhang heng, chinese scientist of the east han dynasty (25 a.d. - 220 a.d.), was the first of its kind in the world. it determined that the angular diameter of both the sun and the moon was 0.5° and the obliquity of the ecliptic was 24° 吴天球: wu tianqiu斜天球: oblique sphere正天球: right sphere两极的: amphoteric; bepolar; bipolar; dipolar; double pole; double-stage; two-pole; two-stage两极端: extreme两极法: bipole两极化: polarization两极钳: bipolar forceps两极式: two plate两极说: dipole hypothesis两极性: bepolarity; biopolarity; bipolarity两极种: bipolar species两极子: bipolaron有两极: polarity你击球两次违例。: you hit the shuttle twice北半天球: northern celestial hemisphere