In order to increase the utilization ratio of copper scraps during the production of upcast OF copper rods investigation was made into the affection of refining agents on the conductivity and microstructure of OF copper rods using intermetallic alloys of rare earth salt and rare earth copper .

在 上 引 铸造 无氧铜杆的生产中，为了提高 废旧紫铜的利用率，采用稀土盐、稀土铜中间合金作为精炼剂，分析了各种精炼剂对 无氧铜杆电阻率和显微组织的影响。

In this simulation model the motion of the anvil was divided into the vibration phase and the upcast motion phase .

仿真模型中，砧座的运动被分为振动及 上抛运动两个阶段。

Investigation into the production of upcast OF copper rods from copper scraps

利用废旧紫铜生产 上 引 铸造 无氧铜杆的研究

The idea of inheriting from a base class without being able to downcast to it or upcast to the base just seemed silly .

继承一个基类而无法将它向下或 向 上 转换 到基类的理念是不明智的。

3 ) The relative maximum height of the upcast barbell center ( the percentage relative to the height of the body ) was high .

3）杠铃 上抛最高点相对高度（与身高的百分比）高；