1. The early Indiana person deer foot
pointed cone's discovery had proven here once had the rich life, some exterminated, but is left over evolved present.
早期印第安纳人鹿脚尖锥的发现证明了这里曾经有丰富的生命，其中一些灭绝了，但剩下的演化到了现在。
2. It analyzes the cause of the piping thinned, introduced the measuring method to the piping thick and
pointed out some problems to should in the measurement.
分析管道壁厚减薄的原因，详细介绍了准确测量管道壁厚的方法，并且指出了管道壁厚测量时应注意的问题。
3. The author
pointed out that tubing anchor can not only control the tubing flex , but also improves force status , prolong the using life of tubing strings .
指出油管锚（油管张力锚除外）不仅可以控制管柱的伸缩，而且可以改善管柱的受力状况，延长油管的使用寿命。
