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porous layer open tubular column
chem.
多孔层空心柱
water.res., ecol.
多孔层开管柱
porous-layer open tubular column
tech.
多孔开口管柱
;
多孔层空心管形柱
;
多孔层开管柱
porous-layer open tubular columns
chem.
多孔层开口管柱
earth.sc.
多孔层开放管状柱
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