foundry work造句怎么写
- 造句
- 关注:2.88W次
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.
This paper studies the practice and mechanism of slagging-off and insulation of Xinyang perlite instead of straw ash used in foundry work conventionally.
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.
- 文章版权属于文章作者所有,转载请注明 https://zhongwengu.com/sentence/dndm2.html