graded coal

On the Application of PLC Control in the Coal Screener

浅谈PLC控制在选煤筛分工艺中的应用

coal-dust( left over after coal has been screened )

（煤经筛后剩下的）煤末.

Sift out ashes from the cinders

把煤渣中的灰筛出来

I was sifting the cinders when she came in.

她进来时,我正在筛煤渣。

The secondary screens receive the coal from the crushers and remove the fines.

经压碎后的煤通过第二道筛，筛出细粉。

The workman riddled the cinders(through a sieve)to get out the larger pieces.

工人筛煤渣,把大块筛出来。

Reformation of bar screen in Sitai washery

四台矿选煤厂原煤车间篦条筛的改造

A place for screening coal and loading it into trucks or railroad cars.

倒煤场一种筛煤并把煤装上卡车或火车车厢的地方

Method for size analysis of coa

GB/T477-1998煤炭筛分试验方法

She had to sift ashes from the cinders.

她只好把煤渣中的灰筛出去。

Biodesulfurization of High-sulphur Coal by Newly Isolated Bacteria

高硫燃煤脱硫菌种的筛选及性能研究

Discussion on the Transformation of the Driving Device in Pulverized Coal (528) Rubber Belt Conveyor

筛末煤(528)胶带输送机驱动装置的改造

Study on Tolerance Screening of Woody Vegetation Restoring Species to High-Temperature

煤矸石山耐高温植被恢复种筛选研究

QZK2445 Large Scale High-performance Slime Screen Analysis of Inherent Characteristics

QZK2445大型高效煤泥筛固有特性分析

To this day coal is said to be screened in the colliery when it has stone and other impurities removed from it.

据说煤中掺有石子和其它杂质须去掉时，至今仍得把煤在矿上筛过。

Coal sizing equipment--Performance evaluation

GB/T15716-1995煤用筛分设备工艺性能评定方法

Study on Treatment of High Concentration Ammania-Nitrogen Wastewater with Zeolite Synthesized with Fly Ash;

粉煤灰合成分子筛处理高浓度氨氮废水的研究

Screening and Determination of Comprehensive Evaluation Indexes about Safety Input in Coal Mine

煤矿安全投入综合评价指标的筛选与确定