earth pit

基本解釋

The majority of tombs are small in size, and earth pit or cave in shape.
墓群以小型土坑墓為主，并有少量土洞墓，中型墓均為磚室或石室墓。
The only way of overcoming the problem is by opting for dedicated earthing to the machine and by regular maintenance of earth pit.
避免這個(gè)問題的唯一方法是選擇機(jī)床專用的接地線并定期維護(hù)接地點(diǎn)。
nhmould.cn
The majority of tombs are small in size, and earth pit or cave in shape. Middle-sized ones are in the form of stone chamber or brick tomb.
墓群以小型土坑墓為主，并有少量土洞墓，中型墓均為磚室或石室墓。