经试验，挤压铸造的球墨铸铁耙片力学性能好，生产成本低。
Experiments indicates that the harrow piece of nodular cast iron in squeezing casting has the features of excellent mechanical properties and low production cost.
将城里的人拉出来，放在锯下，或铁耙下，或铁斧下(或作强他们用锯，或用打粮食的铁器，或用铁斧作工)，大卫待亚扪各城的居民都是如此。
And he brought out the people that were in it, and cut them with saws, and with harrows of iron, and with axes. Even so dealt David with all the cities of the children of Ammon.
应用推荐