recoverable coal

基本解释

Combined 25 Fai green rock walls altogether , there are 20 in the coal seam recoverable range among them.
共組郃25條煇綠巖牆，其中20條分佈在煤層可採範圍內。
The standards for plotting out the economic recoverable reserves of coal and the main effect factors and significance are expounded.
闡述了經濟可採儲量劃分的標準、主要影響因素及意義。
Fengfeng rich in mineral resources, solid industrial base, has proven the value of recoverable resources of coal, china clay, limestone and so on more than 30 kinds;
峰峰鑛産資源豐富，工業基礎堅實，已探明具有可開採價值的資源有煤、瓷土、石灰石等30多種；

Based on these estimates, the EIA concludes that the U.S. will not exhaust its recoverable coal reserves at current mining levels for 222 years.
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The Energy Information Administration (EIA) puts it at around 37tcm of recoverable reserves, two-thirds of which is shale gas and the rest tight gas and coal-bed methane.
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