The holes of the blockbody are stuffed with natural stones.
块体的孔洞中填塞天然石头。
2
The stability problem of wall rock was prominent, and the factors that affect the wall rock stability including karst, disadvantage structure surface, and the blockbody combined by the two factors.
Zinc is a building block of the body and a deficiency in zinc can lead to stunted growth, diarrhea, impotence, hair loss, eye and skin lesions, impaired appetite, and depressed immunity.