Aclinic adjustment method is used instead of the conventional way, the arctrace is gained through rotation of the shell of the top roller bearing.
改进时摒弃了利用标准上罗拉轴承外壳旋转来获取圆弧划痕以供调整的方法，采用了平面直线调整法。
2
As they pass through, they trace out an arc, just like a thrown ball falling due to gravity.
当中子穿越平板时，它们划出一道弧线，就像投出一个小球一样。
3
And they trace the arc of the brothers' intense, conflicted relationship over the years, ending with Vincent's death in July 1890 and Theo's death only six months later.