The matrix suction of unsaturated loess was measured with the method of pressureboard.
采用压力板法测定了非饱和黄土的基质吸力。
2
Upper and lower ends of the hydro-cylinder identity are installed upper pressureboard and down pressureboard, which has piston rod and connecting stick.
复合式弯辊液压缸缸体的上、下端分别装有上压板和下压板组成油缸，里面装有活塞杆和连接杆。
3
The Flow association represents which sensor on which I/O Board or PressureBoard should be used to view the sample flows and carrier flows in the analyzer.