arc
n.(名词)
Something shaped like a curve or an arch:
拱形物:形状类似曲线或拱的物体:
例句:
the vivid arc of a rainbow.
彩虹清晰的拱
Mathematics A segment of a circle.
【数学】 弧:圆周的一段
Electricity A luminous discharge of current that is formed when a strong current jumps a gap in a circuit or between two electrodes.
【电学】 电弧,弧光:当强电流在回路裂缝或两电极间跃升时形成的辉光放电
Astronomy The apparent path of a celestial body as it rises above and falls below the horizon.
【天文学】 周日弧,夜间弧:天体升起或落下地平线时的明显路径
v.intr.(不及物动词)
arced 或 arcked [ôrkt] arc.ing 或 arck.ing [ôr.kng] arcs
To form an arc.
形成拱状物
To move or seem to move in a curved path:
循弧线行进:在弯曲的路往上运动或好象在运动:
例句:
the stars that arc across the sky.
在天空中弧形运动的星
来源:
Middle English ark
中古英语 ark
from Old French arc
源自 古法语 arc
from Latin arcus
源自 拉丁语 arcus