However, the high ash content and logistical problems with collection and processing will limit full utilization of this resource.
但是，灰分含量高和收集加工上的困难制约了对它们的充分利用。
Weihe Chemical Fertilizer Plant originally used Huangling coal, but due to its high ash content and ash fusion point, it became an obstacle in the long term stable operation of the Texaco Gasifier.
渭河化肥厂原采用的黄陵煤由于煤质灰份含量及灰熔点偏高，影响德士古气化炉长周期稳定运行。
Black smoke with high ash content and concomitant low efficiency are long-term unsolved problems of AZD model spreader-stoker boilers.
AZD型抛煤机锅炉烟气排尘浓度高，冒黑烟，效率低是长期来没有解决的难题。
Near the distributary channel, coal layer divarication and pinch-out, with high ash content, and transition to clastic rock.
向河道方向，煤层分叉变薄，灰分高，向碎屑岩过渡。
Near the distributary channel, coal layer divarication and pinch-out, with high ash content, and transition to clastic rock.
向河道方向，煤层分叉变薄，灰分高，向碎屑岩过渡。
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