1) Second-difference
二次差分
2) Twi difference algorithm
二次差分法
3) Energy secondary differences
能量二次差分
4) secondary error analysis
二次误差分析
1.
By the investigation and research on the variable velocity mapping technology and theory, combining with the progressive exploration practice of Yan Muxi area as well as the practical geologic and structure features of this area, two methods of progressive variable velocity mapping suitable for the local region were found: well average velocity and secondary error analysis.
通过对变速成图技术方法和理论的调研,结合雁木西地区滚动勘探实践,针对该地区实际的地质特点和构造特点逐步探索出两种适合该地区的滚动变速成图方法:井平均速度法和二次误差分析法,并应用二种校正方法-倾角校正和剥除浅层低速带法对构造图做进一步的校验,有效地提高了速度场建立和变速成图的精度,解决了雁木西地区低幅度构造成图问题。
5) twice-frame-difference
二次帧差
1.
A segmentation method in gray image sequence based on twice-frame-difference;
灰度图像序列中基于二次帧差的分割算法
6) secondary differential current
二次差流
补充资料：输出反馈(见线性二次型次优控制)
输出反馈(见线性二次型次优控制)
output feedback
3h日c卜口fon以以{输出反馈型次优控制。(output王eedbaek)见线性二次
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条