They don't have joints and limbs or organs or flesh.

他们没有关节四肢，器官血肉。

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and the ground is really soft, so that you don't end up hurting your joints.

土地也很柔软，这样你的关节就不会受伤了。

What do you 实战 - SpeakingMax英语口语达人

Imaging of moving parts that same way is sort of advance in that.

对运动部位的成像技术,可以看成是关节镜技术的进步

耶鲁公开课 - 生物医学工程探索课程节选

And not just a camera but there are also tools on the end of these things so you can cut and you can do manipulations through this instrument.

除了摄像头外,在关节镜的末端还有其他的器械,你可以体外操纵这些器械进行切割等操作

耶鲁公开课 - 生物医学工程探索课程节选

So biomedical engineers have been working for many years on how to design replacement parts for joints like the hip: the artificial hip is the most well developed of those.

因此,生物医学工程师花了很多年时间,致力于设计像髋关节这样的关节替代品,尤以人工髋关节的研究最为成熟

耶鲁公开课 - 生物医学工程探索课程节选

Arthroscopic surgery in one sense is a fancy example of that, a way of looking inside a joint to see what's happening inside while the person is alive and without hurting them.

关节镜手术就是一个极佳的例子,使用该技术我们可以一窥关节内部,而不影响病人的生命,也不会过分痛苦

耶鲁公开课 - 生物医学工程探索课程节选

Arthroscopic surgery - what are you thinking about there?

关节镜手术,你是怎么想的

耶鲁公开课 - 生物医学工程探索课程节选

The cells that take an electrical signal, which is coming down your nerve and convert it into a muscle contraction work this way, so 'neuro' nerve, muscle junctions act based on ligand-gated ion channels.

依靠相同的工作原理,细胞将来自于神经的,电信号传递到细胞收缩肌中,所以神经和肌肉关节运动,都基于配体门控离子通道

耶鲁公开课 - 生物医学工程探索课程节选