No, I'm past the S.I. joint and the S1 body.

不 已经穿过了骶髂关节和S1体腔。

They let outside air into the humid cavity through tiny holes which are controlled by hermetically sealed valves.

它们通过受密闭阀门控制的小孔让外界空气进入潮湿的体腔。

This can range from a heart that's on the right instead of the left to the entire body cavity being flipped around.

可能包括心脏在右边而不是左边，或者整个体腔的位置完全翻转。

So the testes have to be outside the body cavity to reach the lower temperature necessary for proper spermatogenesis, or sperm production.

所以睾丸必须在体腔之外，才能常精子发生或精子产生所需的较低温度。

Instead, horseshoe crab blood flows freely through the body cavity and comes in direct contact with tissues.

相反，帝王蟹的青色血液在体腔内自由流，与组织触。

AIR IS HEATED AS IT FLOWS THROUGH THE CHAMBERS OF THE BOX, AND THEN EXITS FROM THE SIDE PANELS.

空气在流经箱体腔室时被加热，然后从侧面板排出。

Their convex bulge we see on several species covers a moist cavity that protects its respiratory resistance from the dryness of the outside world.

我们能在其中几种身上发现隆起这里面是个潮湿的体腔保护其呼吸阻力不受外面世界的干燥影响。

And plant-eating in these dinos has been supported by the discovery of a dozen skeletons of Sinornithomimus with clumps of gastroliths inside their body cavities.

这些恐龙以植物为食得了十多具似中国鸟的骨骼的支持，它们的体腔内有成块的胃石。

This eggshell forms inside the body cavity of the dinosaur, meaning that the dinosaur had to have had enough extra calcium in its body to create the shell.

这种蛋壳在恐龙的体腔内形成，这意味着恐龙体内必须有足够的额外钙才能形成蛋壳。

From the microbes' point of view, however, they're just a useful device to enlist a host's help in inoculating microbes into a body cavity of a new host.

然而，从微生物的角度来看，它们只是一种有用的装置，可以帮助宿主将微生物种新宿主的体腔中。

It covers the surface of your body when it combines with connective tissue to create skin, but it also lines your body cavities, and coats the internal and external walls of many of your organs.

当它与结缔组织结合形成皮肤时，它覆盖了你的身体表面，但它也覆盖了你的体腔，并覆盖了你许多器官的内外壁。

Worms from the phylum Nematoda or the phylum  Annelida have some sort of body cavity— a fluid-filled space between the body  wall and the digestive tract that helps transport nutrients and corresponds to  the development of more complex systems.

来自线虫物门或环节物门的蠕虫具有一种体腔——位于身体壁和消化道之间充满液体的空间，有助于运输营养物质，并对应着更复杂系统的发展。