根据人-机系统的数学模型，分析了炮手追踪时产生误差的主要原因是系统滞后。
According to the mathematical model of man-machine system, the paper concludes that the main reason of tracing error of operators if system lag.
本文讨论了射线追踪加速技术，复射线参数的选取，并分析了复射线计算中产生误差的主要原因。
Ray tracing accelerate technique, the parameters of complex ray has been discussed in this article, and some empirical formulas for choosing the complex ray parameters have been given out.
本文讨论了射线追踪加速技术，复射线参数的选取，并分析了复射线计算中产生误差的主要原因。
Ray tracing accelerate technique, the parameters of complex ray has been discussed in this article, and some empirical formulas for choosing the complex ray parameters have been given out.
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