The grain size of the loess is coarse with high contents of unstable minerals, indicating that the Xining loess material source approximate to the loess region.
黄土粒度粗，不稳定重矿物含量高，表明西宁黄土区距黄土物源近。
The competitive grain growth of DD8 high temperature alloy in planar and cellular interface region has been investigated.
研究了DD 8高温合金在平界面及胞晶区的晶粒竞争生长。
The competitive grain growth of DD8 high temperature alloy in planar and cellular interface region has been investigated.
研究了DD 8高温合金在平界面及胞晶区的晶粒竞争生长。
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