浮: float; drift球: sphere; globe仪: appearance; bearing浮球: ball float; buoyancy chamber; float ball; float bowl; floater; floating ball测球仪: spherometer地球仪: tellurian; globe 地球仪断面 gore 环球仪: ring-and-ball apparatus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° 星球仪: celestial globe; star globe月球仪: globes of the moon; selenographic globe半浮球: ufo浮球阀: ball cock; ball float valve; ball valve; ball-cock assembly; float ale; float stop valve; float-operated valve; floating valve浮球杆: ball lever浮球感: ballottement浮球室: float chamber双浮球: twin float悬浮球: levitated sphere地球仪断面: gore地球仪分段: segment of a globe环球仪器: universal instruments立体地球仪: relief globe内照秘球仪: illuminated globe地图及地球仪: maps & globes行星的地球仪: planetary globe子午环地球仪: meridian ring globe