Effects of quality index, which are volcanic ash activity, loss on ignition, fineness and water demand ratio, on quality of fly ash are expatiated, the requests to quality of fly ash are put forward.
阐述了火山灰活性、烧失量、细度和需水量比等品质指标对粉煤灰质量的影响，对粉煤灰品质提出了要求。
2
The main points are to represent the utilization ratio of energy as a series of functions of the grain size of feed material and the fineness of discharge al well as the nozzle form.
研究的主要内容是给料粒度与粉碎产物细度和能量效率的关系，以及喷嘴形状与能量效率的关系。
3
Owing to the successful application of HSE management, zero injury and zero accident were achieved during the operation of VSP logging in many Wells, and a 100% finenessratio was achieved.