limestonen.石灰石
limestone flux石灰石溶剂
limestone soil石灰岩发育的土壤,石灰土
limestone sand石灰岩砂
limestone cave灰岩洞
limestone roof石灰岩顶板
limestone block石灰石块
limestone power石灰石粉
limestone layer灰岩土层
limestone soils石灰岩土壤
limestone hills石灰岩山地