second of arc

基本解释

• 弧秒

英汉例句

双语例句

• One second of arc movement is one thirtieth of a millimetre.
  一弧秒的移动是一毫米的三十分之一。
• When rotatory table is control by step motor with 360:1 reduction rate worm barring gears, one second of arc resolution can be achieved.
  当步进电机通过360：1减速比蜗轮副控制旋转工作台时，可获得1角秒的分辨率。
• Dynamic process of current is controlled quickly by the first inverter, and arc polarity is controlled by the second inverter of arc welding power source.
  弧焊电源一次逆变控制电流快速动态过程，二次逆变控制电弧极性。

权威例句

• The largest optical telescopes on earth can distinguish between things that are separated by about one second of arc (a 1, 296, 000th of the celestial equator).
  ECONOMIST: Pulsars: In a wink The
• Its resolution is 30 billionths of a second of arc.
  ECONOMIST: Pulsars: In a wink

• second of arc更多例句

词组短语

短语

• second d of arc 角秒

• second of arc更多词组

专业释义

天文学

• 角秒

经济学

• 弧秒