There are three coal mines in Xin'an Coalfield. The Shanxi group irregular(2-1) coal seam has soft roof, soft coal and soft floor.

在新安煤田新建的三对矿井，主采煤层均为山西组2-1三软不稳定煤层。

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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。

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Empty soft-drink cans lie everywhere. They clutter the desks and are strewn across the floor.

软饮料空罐到处都是，堆满了桌面，还扔了一地。

《柯林斯英汉双解大词典》

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