板框式滤油器
plate-frame type oil filter
刮板式旋转泵
slide-vane type rotary pump
一次旋转滤网
One-cycle Rotating Filter
Primary rotary filer
板框滤压机
plate and frame filter press
板框式压滤机
plate and frame type filter-press
plate and frame type filter press
frame type filter
板式转换阀
plate type changeover valve
腭板旋转培养
rolling palate organ culture