The head assembly is stepped a first predetermined number os steps in a first transverse direction until the carrier servo signal is not detected.
沿第一横向使磁头组件步进第一预定步数，直至检测不到载体伺服信号。
The signal to add to positions may be triggered at predetermined price points that confirm the trend direction.
加仓的点位是依照趋势方向提前选定的。
The dip direction and dip Angle of a subsurface interface must be first determined in three-parameter velocity analysis that needs predetermined dip Angle.
采用预求倾角法进行三参量速度分析时，首先要确定地下界面的倾向和倾角。
The dip direction and dip Angle of a subsurface interface must be first determined in three-parameter velocity analysis that needs predetermined dip Angle.
采用预求倾角法进行三参量速度分析时，首先要确定地下界面的倾向和倾角。
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