guided mine 中文意思是什麼
guided mine
解釋
制導水雷-
Guided by new and creative prospecting idea, several gold deposits have been discovered at the depth and in the adjacent area to jiapigou gold mine of which was once closed in 1960 in jilin province
曾於1960年一度閉坑的吉林省夾皮溝金礦，在新的找礦思路指導下，在礦山深邊部及外圍地區發現了多處大中型金礦床。 -
Abstract : guided by the theory of environmental economy, the basic ideology and method of e conomic analysis in coal - mine - aroused subsided and subsiding land reclaiming a re presented based on the analysis of economic characters of coal - mine - aroused subsided and subsiding land reclamiming. it is pointed out that the following fa ctors must be considered : the ecology benefit of reclaiming, the value of land re s ource before and after reclaiming, the sensibility of finacial benefits to market price and the time value of money. three typical reclaiming styles in kailuan co al mine, tangshan are studied as a case
文摘:將環境經濟學引入復墾活動的分析和評價，著重考慮了復墾的生態社會效益、復墾土地資源的價值、市場價格變化對復墾經濟收益的影響和復墾效益對時間的依賴性，以期為復墾項目的選擇和相關政策的制定提供經濟方面的依據和指導.並以唐山市開灤煤礦3種典型的塌陷地生態復墾模式為例進行了分析，結果表明，將環境經濟學引入復墾模式的分析和評價，可以比較全面反映復墾活動的經濟特徵
分享友人