4.the stone circle was environed by an expanse of peat soil.
石铺的圆形广场四周是一大片。
5.Bogwood:Wood that has been preserved in a peat bog.
木:沼木久埋于沼泽之中的树木。
6.The kaolinite tonstein in the seam 5# is formed by acidic ash alterated in the acid medium in peat bog in tongchuan district.
铜川矿区5#煤层中的高岭石岩夹矸是由酸性火山灰在近表的成煤条件下经酸性水淋滤、蚀变而成的。
7.Chinese medicine residue contained less water than peat, and subirrigation could promote the growth and quality of poinsettia grown in medicine residue-substrate.