However, in the late 1980s, some scientists were exploring Devil' sHole, which is basically an extensive water-filled cave, far from the ocean, in Nevada2, in the western United States.
This paper presents a study of the edge cutting pin′shole diameter and the relationship between the said diameter and the maximum angular error of a workpiece.
本文就削边销及其配合孔的直径与工件最大转角误差的关系进行了分析计算。
3
He recently co-authored a study with the U. S. -based Woods Hole Research Center. The study identified strategies for ending deforestation in the Brazilian Amazon.