The strengthening mechanism of rare earth element in sintered copper molybdenum steel has been studied.
探讨了稀土在烧结铜钼钢中的作用机理。
The rare-earth element that other industrial countries worry about most is neodymium.
其他工业国家所最担忧的稀土元素是钕。
The rare-earth element that other industrial countries worry about most is neodymium.
其他工业国家所最担忧的稀土元素是钕。
应用推荐