spiral track的意思|示意

Our current CDs and DVDs store data along a narrow spiral track in a thin layer of polycarbonate plastic.

我们现在的CD和DVD沿着一个狭窄的螺旋轨道把数据储存在一个微笑的塑料里。

Movable arm scraper collects sludge using track of log spiral, so it has characteristics of good continuity and high efficiency of sludge collection.

可动臂式的刮板以对数螺旋线轨迹集泥，连续性好、集泥效率高。

Track their movements are running into a round, curved, spiral and so on, moves the process of sound connected, at one go, leading, long body, tail echoed each other to form a vivid dragons posture.

其动作的运行轨迹大都成圆形、弧形、螺旋形等，动作过程稳健，环环相扣，一气呵成，龙头、龙身、龙尾相互呼应，形成活灵活现的龙姿。