1) an iron pestle can be ground down to a needle
铁棒磨针
1.
View on the development steps of human beings from myths and legends——A new interpretation about the bird Jingwei trying to fill up the sea with pebbles,foolish old man trying to remove the mountains,an iron pestle can be ground down to a needle
从神话传说看人类前行的脚步——对精卫填海、愚公移山和铁棒磨针的重新解读
2) Perseverance will prevail.
铁杵磨成针.
3) rod mill
棒磨
1.
Evaluating methods of processing parameters in wet rod mill were investigated.
研究了磨矿工艺参数指标的评价问题,提出了用“磨矿技术效率×处理量”作为评价指标,并运用这一指标在石英砂岩的湿法棒磨的实验中对给料量、介质充填率、磨矿浓度等工艺参数进行了选择,实验结果表明,采用这一指标,可以对磨矿作业的工艺条件进行优化。
2.
In view of Pingguo bauxite properties, the requirements of the attrition of bauxite and digesting performance for grinding process, two stages grinding-water cyclone grinding and classification new process and giant mill were developed, one is rod mill open circuit, the other is ball mill and water cycloneclosed circuit.
针对平果铝矿石的特性、矿石的可磨性及溶出性能对磨矿工艺的要求 ,开发了棒磨开路、球磨与水旋器闭路的两段磨—水力旋流器磨矿分级新技术及大型磨机。
4) pinner rod of chain gill box
针棒
5) knitting pin method
棒针针法
6) bar iron
棒铁
补充资料：铁棒
1.亦作"铁棓"。 2.铁铸的棍棒。古代用作兵器。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条