Thee small rota diameter does mean she spins very fast and their is quite a bit of tip noise, but not enough to worry about.
小罗塔直径意味着她旋转非常快，他们是相当多的冰山噪音，但不足以担心。
Small diameter cone bit positioning deflection by wire-line coring with steel ball supporting was used to solve the problem economically.
采用绳索取心钢球支撑小径锥面钻头定位偏斜技术对事故进行处理，经济有效。
The small rota diameter does mean she spins very fast and their is quite a bit of tip noise, but not enough to worry about.
小罗塔直径意味着她旋转非常快，他们是相当多的冰山噪音，但不足以担心。
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