foundry work造句

This paper studies the practice and mechanism of slagging-off and insulation of Xinyang perlite instead of straw ash used in foundry work conventionally.

Methods Scanning electron microscope and X-ray analysis were used to study the distribution of all kinds of elements in sand-cast, sculpt and clear-sand of one foundry work and quarry work.

The figure is a copy of one sited in the town of Lubertsy, just outside Moscow, where Gagarin trained as a foundry worker in his mid-teens.