The vineyard (3 ha of old vines) is made up of the famous gravel soil with typical ironslag subsoil; yearly production is around 15 "tonneaux".
葡萄园（3 公顷，树龄高）土质以碎石为主，年产量为15 橡木桶。
2
The paper describes the building-up process of a large size rotary jet slip-casting pile by quick pore-forming in bulky ironslag layer and in river banks floated pebble bed.
阐述了在松散渣铁层及河岸漂卵石层中快速成孔，形成较大直径的旋喷注浆桩的过程。
3
The reason for the slow development of silicon fertilizer production from ironslag in the country is analyzed, and further more, the research direction in the field is proposed.