Okay, so the intestinal wall, like this one, has lots of ridges and grooves, and also can be separated into the mucosal layer, submucosal layer, muscle layer, and serosa.

，那肠壁有很多的脊和槽，像这个图片一样，肠壁还可被分成黏膜层、黏膜下层、肌层和浆膜层。

So I am a big fan of ridgeless baskets over ridged and I would rather change this little clip out and have a stiffer one than go to a ridged basket from a kind of workflow perspective, just because the easier, the better.

所一个无脊萃取机的忠实粉丝，宁愿把这个小夹子换掉，换一个硬的，而不从工作流程的角度来看有脊的萃取机，因为容易。

Even with protective enamel ridges, these teeth would gradually have worn down.

即使有保护釉质的脊，这些牙齿也会逐渐被磨损。

The head is flat, U-shaped, and has a prominent ridge running from the blowhole to the top of its upper lip.

它的头部扁平，呈 U 形，从喷气孔到上唇顶部有一个突出的脊。

A sharp ridge in the back of the skull.

头骨后部有一个尖锐的脊。

The basal part of the labellum stands over the bucket, and is itself hollowed out into a sort of chamber with two lateral entrances; within this chamber there are curious fleshy ridges.

唇瓣的基部位于桶的上方， 它本身被挖空成一个有两个侧向入口的腔室；在这个房间里有奇怪的肉质脊。