直接调控方式向
increase the reliance on indirect policy instruments
to increase the reliance on indirect policy instruments
直供方式交流电气化铁道
AC electrification railway with direct power supply system
直方图最小失真
least histogram abnormality
直方图转移矩阵
histogram transfer matrix
直方图移动平均
histogram moving smoothing
直方图修正及彩色变换
histogram correcting and color transforming