second of arc

基本解释

• 弧秒

英汉例句

雙語例句

• One second of arc movement is one thirtieth of a millimetre.
  一弧秒的移動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.
  儅步進電機通過360：1減速比蝸輪副控制鏇轉工作台時，可獲得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.
  弧銲電源一次逆變控制電流快速動態過程，二次逆變控制電弧極性。

權威例句

• 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

短語

• second d of arc 角秒

• second of arc更多词组

专业释义

天文學

• 角秒

經濟學

• 弧秒