Around the Haversian canals, there are concentric lamellae, which look a bit like tree rings.

在哈弗斯管周围有许多同心片，看起来有点像树的年轮。

We also went over the microanatomy of bones, particularly the osteons and their inner lamella.

我们还回顾了骨骼的显微解剖，尤其是骨及其内部骨板层。

In between neighboring lamellae, there are spaces called lacunae, which contain bone cells called osteocytes.

相邻的同心片细胞之间的空间叫做陷窝，其中包含骨细胞。

And then, tucked away between the layers of lamellae are tiny oblong spaces called lacunae.

然后，隐藏在片层之间的是微小的长方形空间，称为腔隙。

One pump bends the disc to position it along a surface, while the other controls the lamellae..

一个泵使圆盘弯曲以使其沿表面定位，而另一个控制片。

The lamellae have an organic part, which is mostly collagen, and an inorganic part called hydroxyapatite, which is mostly calcium phosphate.

这些片的有机部分要是胶原蛋白，而无机部分称为羟磷灰石，其要成分是磷酸钙。

This further rotates the lamellae and engages the spinules.

这会进一步片并接合小刺。

At their bases there is a short subsidiary row of obliquely transverse lamellae.

在它们的基部有一排短的倾斜横向片。

Remoras use lamellae, slat-like bones encased in soft tissue, and spinules, rows of hard teeth-like tissue, to latch on.

Remoras 使用片、包裹在软组织中的板条状骨头和小刺、一排排坚硬的牙齿状组织来咬合。

To make the robot latch even stronger, fluid is pumped from the chamber back to the lamellae.

为了使机器人闩锁更牢固，流体从腔室泵回片。

There are other species of geese, as I hear from Mr. Bartlett, in which the lamellae are less developed than in the common goose.

正如我从巴特利特先生那里听说的， 还有其他种类的鹅， 其鳞片不如普通鹅发达。

On the other hand, the extremities of these lower lamellae are frayed into fine bristly points, so that they thus curiously resemble the plates of baleen.

另一方面，这些下部片的末端磨损成细小的刚毛点， 因此它们很像鲸须板。

With such structures as the above lamellae of horn or whalebone, habit or use can have done little or nothing, as far as we can judge, towards their development.

对于角或鲸骨的上述片这样的结构， 据我们判断， 习惯或使用对它们的发展几乎没有或根本没有作用。

Once the disc presses down on a surface, A tight seal is created from the difference in  pressure between the compartments and environment, and the slight rotation of the lamellae.

一旦圆盘向下压在表面上，隔间和环境之间的压力差以及片的轻微就会产生紧密的密封。

In the family of the ducks, the lamellae are first used as teeth, then partly as teeth and partly as a sifting apparatus, and at last almost exclusively for this latter purpose.

在鸭科中，片首先用作牙齿， 然后部分用作牙齿， 部分用作筛分器具， 最后几乎完全用于后者的目的。

But two big improvements were needed: getting rid of the tether and making the disc suction not just with the outer lip, not just with the outer lip, but also adding suction to individual lamella.

但是需要进行两项重大改进：摆脱系绳并使圆盘吸力不仅与外唇，不仅与外唇，而且还增加了对单个片的吸力。

In this latter bird the lamellae of the upper mandible are much coarser than in the common duck, almost confluent, about twenty-seven in number on each side, and terminating upward in teeth-like knobs.

后一种鸟的上颌骨片比普通鸭粗糙得多，几乎汇合在一起， 每侧约有 27 个， 向上终止于牙齿状的突起。

I wish only to show that this is not incredible, and that the immense plates of baleen in the Greenland whale might have been developed from such lamellae by finely graduated steps, each of service to its possessor.

我只想证明这并不令人难以置信， 格陵兰鲸身上巨大的鲸须板可能是从这样的片中通过精细的渐进步骤发展而来的， 每一步都为其拥有者服务。

There are other species, as I hear from Mr. Salvin, in which the lamellae are considerably less developed than in the common duck; but I do not know whether they use their beaks for sifting the water.

正如我从萨尔文先生那里听说的那样， 还有其他种类的鸭子， 其片的发育程度远不及普通鸭子；但我不知道它们是否用喙来筛水。

The lower mandible of the shoveller-duck is furnished with lamellae of equal length with these above, but finer; and in being thus furnished it differs conspicuously from the lower jaw of a whale, which is destitute of baleen.

shoveller-duck 的下颌骨有与上颌骨等长的片， 但更细；由于具有这样的构造， 它与鲸鱼的下颚明显不同， 后者没有鲸须。