The author holds that there are not only lots of lownwords but also substrata words in the language.
作者认为撒拉语中不仅有不同来历的借词，还有不同的语言底层。
This happened with such force that heating of the substrata rock occurred and actually caused rock to melt in low laying areas.
这种情形产生的力量使基岩被加热，竟然导致低位区域的岩石融化。
This research will try to resolve the distribution and controlling factors of gas layers by the study of division of substrata in Bawu gas field.
本文通过八屋气田小层划分和对比的详细研究，对整个气田气层分布规律、控制因素有了新的认识。
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