全部

1·It builts basis for the prediction of the radius of curvature of cross-curling chips and chips break natur.

通过切削试验发现，切屑宽度直接影响切屑横向卷曲半径，进而影响切屑折断性。

2·The rate of species discovery has remained about even ever since Haeckel compiled his Kunstformen der Natur (Art Forms of Nature) a century ago

自从一个世纪前，海克尔（Haeckel）编写了《自然的艺术形式》（Kunstformen der Natur ）后，新物种的发现速度就一直没变过。