Continuous classification test was made on pure quartz in one unit of tilting narrow up - flow classification equipment.
用一个单元的斜窄流分级装置，开展了石英单矿物的连续分级试验。
The feeding speed of shifting unit of welding machine is one of the most important factors of rail continuous flash welding quality.
影响钢轨闪光焊接头焊接质量的因素很多，其中焊机动力柱的送进速度就是重要因素之一。
The invention has the following main steps: the timing unit calculates the one-time continuous water supply time;
主要步骤包括：计时单元计算一次连续用水时间；
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