现在，垂直于同一个平面的，有两个方向。

Now, there's two different possible directions that are perpendicular to a plane.

youdao

历史在那天有两个可能的方向。

History branched in two possible directions that day.

youdao

大多数榫头除了在长边方向有榫肩，在两个短边方向也有榫肩。

Most tenons also have shoulder cuts on the top and bottom edges.

youdao

大多数榫头除了在长边方向有榫肩，在两个短边方向也有榫肩。

Most tenons also have shoulder cuts on the top and bottom edges.

youdao