adj.(矿)露天采掘的。open pit: 采石场; 露天采掘场; 露天开采坑blasting survey of open pit: 露天矿爆破工作测量chambeshi open pit: 谦比西露天矿mining shaft and open-pit: 采矿井场open building pit: 露天施工坑下载手机词典可随时随地查词查翻译