Solid hardpitch is transported in bulk by trucks or by train.
经过固态成型后，以汽车或火车散装运输。
2
The practice after the feeding pump of hardpitch controlled by belt changed into frequency control of speed in AISC Chemical General Plant is introduced.
介绍了鞍钢化工总厂硬质沥青加料泵皮带调速改为交流变频调速的实际应用过程。
3
The closer it came in pitch to the first one, the hard it became for the dolphin to correctly identify it as low.