为了检验这一理论，来自英国埃克塞特（Exeter）大学的研究人员建造了一个模型，先在木板上挖槽，然后将木球放入槽内。

To test the theory, researchers from the University of Exeter constructed a model in which wooden balls were inserted into grooves dug out of timber planks.

youdao

原生态的红砖、暗藏灯槽的木板、随意摆放的手工艺品，足以让这里成为美食与享受、惊喜与回忆的老地方。

Raw red brick, the board of lamp chamfer, random handicrafts, enough to make this food and enjoy, surprise and recalled the old place.

youdao

如果提出要求，第一个和最后一个木板可以看得见单板边缘，但无舌或槽，成品，以配合面临的木板。

If requested, the first and last plank can have visible veneered edges, without tongue or groove, finished to match the face of the plank.

youdao