crooked-hole tendency 井眼弯曲趋势
When a hole forms, a strong tendency to equalize creates a rushing tunnel of wind, like water flowing through a hose.
当一个洞形成的时候，平衡内外气压的强烈趋势会生成一个通风的隧道，就像水流过管子一样。
The results showed that, there is a deformation tendency of drawing, and flanging and the tendency is related to, in the same parameter of die and the same technological conditions, the hole size.
试验所获应变分布表明，带孔件在变形过程中存在拉深和翻边两种变形趋向性，在模具参数和工艺条件完全相同的情况下，其可能的变形趋势与孔的尺寸有关。
Appearance: diffuse-porous wood, half ring hole material tendency obvious, growth ring slightly obviously, heartwood red brown to purple brown, sawdust water extract of red;
外观：散孔材，半环孔材倾向明显，生长年轮略明显，心材红褐至紫红褐色，木屑水浸出液红色；
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