在试验室中应用液压动筛跳汰机洗选无烟煤，通过调整参数试验，洗选精煤降灰效果明显，工艺简单。
By modulating parameters in experiments and using hydraulically vibro-assisted jigs to wash anthracite in laboratory, the effect of declining ash is obvious and the arts and crafts is also simple.
试验中采用专用的扁式液压千斤顶，并采用试验室足尺模型标定试验，研究了这种方法的可靠性。
The reliability of this technique, which is based on the use of special flat-jacks, has been studied by means of calibration tests carried out in laboratory on large size samples.
试验中采用专用的扁式液压千斤顶，并采用试验室足尺模型标定试验，研究了这种方法的可靠性。
The reliability of this technique, which is based on the use of special flat-jacks, has been studied by means of calibration tests carried out in laboratory on large size samples.
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