弧的英文：
arc

• FENDER TRIM
  汽車輪弧
• Arc Subdivision
  弧細(xì)分;圓弧細(xì)分
• 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。
• The secant of the complement of a directed angle or arc.
  余割有向角的余角或弧的余割
• (in surveying)angle between this arc and the meridian
  (測量中)方位角(此弧與子午圈之間的夾角).
• Rear-arc basins seem to have opening kinematics very like other chasmic basins
  弧后盆地似乎很象其他裂陷盆地那樣具有張開運(yùn)動
• An arc is a part of the circumference of a circle or other curved lines.
  弧是圓周或曲線的一部分。
• Bow type continuous casting machine
  弧型連鑄機(jī)
• On the lucky morning when the bow was hung on the door
  懸弧令旦
• The chord AC subtends the arc ABC.
  弦AC正對弧ABC。

• piercing by electric arc
  電弧穿孔
• The beach swept around in an arc.
  海灘呈弧形伸展開來。
• The secant of the complement of a directed angle or arc.
  余割有向角的余角或弧的余割