open-pit mining：露天采礦

open-loop gain 開環(huán)增益 | open-pit mining 露天采礦 | open-pressure blasting 露天壓風(fēng)噴砂清理法

open-pit mining：明坑採礦法

Open cut 明挖法 | Open pit mining 明坑採礦法 | Optimum moisture content 最佳含水量

open-pit mining：露天采礦法

open pot 廣口熔甕 | open pit mining 露天采礦法 | open manometer 開口壓力計(jì)

opencast mining：露天采礦

open woodland 開闊樹林 | opencast mining 露天采礦 | open-cup test 開杯試驗(yàn)

opencast mining：露天開采法

open system 開放系統(tǒng) | opencast mining 露天開采法 | opportunity cost 機(jī)會成

retreating mining：后退式開采

retreating longwall 后退式長壁開采 | retreating mining 后退式開采 | retreating work 后退式開采

International Round-table on Artisanal and Small-scale Mining：手工和小規(guī)模采礦國際圓桌會議

Language Coordinator;語文協(xié)調(diào)員;... | International Round-table on Artisanal and Small-scale Mining;手工和小規(guī)模采礦國際圓桌會議;; | American Crop Protection Association;美國作物保護(hù)協(xié)會(作保協(xié));ACPA;作...

Clear Water Bay Resort Royal Island Resort Sai Tao Yuan mining embankment：清水灣山莊 萬宜山莊 御采河堤 西貢濤苑

銀海山莊 富嘉堡 麗景閣 海濤別墅 Grandway ... | 清水灣山莊 萬宜山莊 御采河堤 西貢濤苑 Clear Water Bay Resort Royal Island Resort Sai Tao Yuan mining embankment | 飛鵝山莊 龍湖別墅 帝濤居 翠蕙園 Fei Ngo ...

sea floor mining：海床開采

sea floor exploration 海底勘探 | sea floor mining 海床開采 | seal 密封

Southland Mining, Ltd：南土礦業(yè)有限公司

southern winter;南半球冬季;; | Southland Mining, Ltd.;南土礦業(yè)有限公司;; | southward policy;南下政策;;