He should not have teeth in his upper jaw either.

他的上颌应该也还没长牙齿。

It also has a sort of horny upper jaw.

它还有一个类似角质的上颚。

It had a spoon-shaped end which matched the same structure in the upper jaw.

尾部也是匙形，与上颚结构对称。

He has seventeen teeth in the upper jaw, and nineteen in the lower jaw.

上腭有17颗牙齿, 下腭有19颗。

We have four of them in our upper jaw and four in our lower jaw.

八颗门牙分别是上颚有四个，下颚有四个。

It has six sharp front teeth for cutting-four in the upper jaw, and two in the lower jaw.

兔子嘴前面长着六颗锋利的牙齿, 上颌有四颗, 下颌有两颗。

With its teeth and its upper jaw the snail cuts off bits of the young plants for food.

凭借这样的牙齿与上颚, 蜗牛能够撕咬植物幼苗作为食物。

Developed in 1966, the general goal of orthotropics is to guide the the upper and lower jaws to grow forwards.

正交异性治疗方法于1966年问世，它的理念是帮助下巴的上部和下部骨骼向前生长。

Primo, the acanthopterygians, whose upper jaw is fully formed and free-moving, and whose gills take the shape of a comb.

第一目是硬鳍鱼，上鳃是完：整的，能动的，鳃作梳子形。

There are no teeth in its upper jaw opposite these, but there is a hard pad instead.

上面的上腭部分没有牙齿，只有一个坚硬的齿垫。

Unlike the modern sperm whale, the fossil one had large, fully functional teeth both on the upper and lower jaws.

与现代抹香鲸不同，这副化石的主人在其上下颌都有巨大，实用的牙齿。

Teeth can be found in the upper and lower jaws.

牙齿可以在上颌和下颌中找到。

And most of their frog relatives have reduced teeth, found in their upper jaws only.

而且他们的大多数青蛙亲戚的牙齿都减少了 ，仅在他们的上颌中发现。

Some experts thought the wheel of teeth was in the upper jaw.

一些专家认为牙轮在上颚。

It was an adult, as could be seen from the six rows of teeth forming an isosceles triangle in its upper jaw.

这是一条成年的鲨鱼，从它嘴里，在上颚上，有摆成等边三角形的六排牙齿，就可以看出来。

Effectively, there is only one large grinding surface in each upper or lower jaw.

实际上，每个上颚或下颚只有一个大的磨削面。

Plus they have external ears, and a moveable bone in the upper jaw that allows for a wider gape.

此外，它们还有外耳，上颌有一块可移动的骨头，可以张开更大的嘴巴。

There's up to 17 teeth in this part of the upper jaw in Nanotyrannus and there's only 12 or 13 in Tyrannosaurus Rex.

矮暴龙上颚的这部分有多达十七颗牙齿，而雷克斯暴龙只有十二到十三颗。

Those unexplained fossae in its upper jaw?

它上颚的那些无法解释的窝？

The scan revealed impressions of cartilage that formed both the upper and lower jaw.

扫描显示形成上颌和下颌的软骨印记。