红色部分是哈弗斯管—密质骨复杂循环的一部分。

Shown in red are Haversian canals, part of the compact bone's intricate circulatory network.

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分析工业锅炉自然循环的水动力计算特点，对简单及复杂循环回路的计算方法提出建议。

Analysis the character of hydrodynamic calculation for natural circulation of industrial boiler and give the recommendation of calculation method for simple and complex circulation circuit.

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此外，反过来，这两种细胞在复杂的激素循环中，不仅能调节胰岛素的产生，而且还控制着血糖含量以及能量的新陈代谢。

What's more, these cells are involved in an intricate hormonal loop that in turn regulates not only insulin production, but also blood sugar levels and energy metabolism.

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What's the complexity of that inner loop?

我只想要得到内嵌的这个循环的复杂度？

麻省理工公开课 - 计算机科学及编程导论课程节选

Now this happens to be what we would call a linear process, because the number of times I go around the loop is directly related to the size of the argument. If I double 2 the argument, I'm going to double the number of times I go around the loop. If I increase it by five, 5 I'm going to increase by five the number of times I go around the loop.

这恰好是我们会成为,线性复杂度程序的一个例子,因为我要执行循环的次数是,和输入的参数的大小直接相关的,如果我将这个参数乘以,那么我就要将进行循环的次数也乘以2了，如果我把参数加上,那么循环的次数也要加上5了。

麻省理工公开课 - 计算机科学及编程导论课程节选

It expands. You change your constraints on your system, you heat it up some more, then you take the heat source away, and you put it back in contact with the atmosphere. And you cool it a little bit, change the constraints, cool it a little bit more, and heat, and you've got a closed cycle engine.

让它与大气接触冷却,改变约束，使它继续冷却，然后又再次加热,这就是循环热机，我们以前也研究过，更复杂的机器。

麻省理工公开课 - 热力学与动力学课程节选