We'll have a reaction vessel that's sealed, it's constant volume.

我们有一个密封的反应容器，它的体积是恒定的。

youdao

The vessel contains a certain amount of gas to be kept at a constant temperature.

容器中装有一定数量的气体，这些气体的温度保持不变。

youdao

Results the sural nerve nutrient artery has 2 to 4 branches with constant three branches and the vessel network is formed in an anastomosis way.

结果腓肠神经营养动脉2 ~ 4支，各营养动脉形成血管网相互吻合，其中三支发出较为恒定。

youdao

"We will have a small capability to move roughly 150 containers a day through the port today , growing with the arrival of a commercial vessel tomorrow of 250 containers per day and that capacity will remain relatively constant,"

VOA: standard.2010.01.21

Yes, and if we have gases involved, it's pretty similar, but now what will have is something like this. We'll have a reaction vessel that's sealed, it's constant volume.

如果涉及了气体，情况也很相似，只是现在的装置是这样的,我们有一个密封的反应容器,它的体积是恒定的。

麻省理工公开课 - 热力学与动力学课程节选