underside是什么意思

网络释义

1)underside,断层底板翼2)tank side bracket,柜边托架双层底翼板3)bottom flange plate,底翼缘板4)breaking flange slab,翼板断裂5)limb fault,翼部断层6)seam fault,煤层断失翼

Seeking seam fault with new method;