This paper puts forward support plan through analyzing strata behavior regularity of coal roadway in seam with soft roof, soft coal and soft floor.

文章通过对永华煤矿“三软煤层”煤巷矿压规律进行分析，提出了支护方案。

youdao

The final layer is often panels of loose-weave or sheer fabric hanging in soft drapes to the floor.

WSJ: Sheer Curtains, Solar Shades Are Popular Window Treatments

The floor was made of some soft material to prevent injury in case of a fall.

NEWYORKER: Town of Cats

In the room-sized installation, where the skin-coloured floor, ceiling and matrix of columns are all made of silky Lycra tulle, you stumble, clutch at the soft columns and finally tumble into the squishy floor.

ECONOMIST: Brazilian art