Bragg equation

Bragg [[bræg]]

[计] 布拉格

equation [ɪ'kweʒn]

n. 方程式;等式;相等;[化学] 反应式;

equat相等 + ion表示行为、行为的过程或结果、情况、状态 → 方程(式)；等式

There is an emergency. Please send a fire engine.

这有火灾，请尽快派消防车来。

Credit, like a looking-glass, broken once, is gone, alas.

信誉像镜子，破碎无法补。

Next, if it is not a story, get an idea of the organization of the book. Read the back cover and the introduction. Look at the pictures and the short texts below them. Turn to the front of the book and look at the contents. This way you can decide whether

其次，如果不是故事书，你就要对书的篇章结构有所了解。看看目录。这样，你就可以判断这本书是否可能引起你的兴趣。如果是这样，你就可以断定哪几个部分最有用，最有趣。