recoverable coal

基本解釋

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(cǎi)範(fàn)圍內(nèi)。
The standards for plotting out the economic recoverable reserves of coal and the main effect factors and significance are expounded.
闡述了經(jīng)濟(jì)可採(cǎi)儲(chǔ)量劃分的標(biāo)準(zhǔn)、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(yè)基礎(chǔ)堅(jiān)實(shí)，已探明具有可開(kāi)採(cǎi)價(jià)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.
FORBES: U.S. Crowned King of Coal, Some Disagree
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.
ECONOMIST: Shale gas is giving a big boost to America’s economy