好吧，当然一种解答的办法是，造一个模型，然后用量角器去量这个角，但是我们可以更聪明一点。

OK, so, of course, one solution is to build a model and then go and measure the Angle But, we can do better than that.

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当你年轻的时候，你的身体造新骨的速度比其破坏旧骨的速度快，而你的骨量会增加。

When you're young, your body makes new bone faster than it breaks down old bone and your bone mass increases.

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因此，利用锯末具有高发热量与烧失量的特点，将锯末作为造孔剂制备轻质高强高孔洞率的烧结制品。

Therefore, sawdust, as a pore-forming agent, can prepare sintered product with light weight, high strength and high porosity due to calorific value and loss of sawdust.

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