arc track 弧形轨道
non-arc track 非圆弧轨道
arc track insert 圆弧插补
the arc-track private lock 弧轨自锁
Circular Arc Track Regulation 圆弧摆动装置
tungsten touch-striking arc track 引弧轨迹
arc furnace tilt roller track [冶] 电弧炉倾炉滚动导轨
NASA spokesman Steve Cole said that was possible because the last track for the satellite included Canada, starting north of Seattle and then in a large arc north then south.
NASA发言人史蒂夫.科尔说，因为加拿大留下了卫星的最后轨迹，所以存在这样一种可能，就是从西雅图北部开始，然后以大弧形向北再向南。
the radius of curvature of our arc, which is also an air track, equals 115 plus or minus five meters.
,这个弧度的半径，也是个空气轨道，等于115上下5米。
Successive initiation of the arc spots and their jumping motion along a track were observed.
观察到弧斑沿弧迹的产生经过及其眺跃运动。
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