We were redoing a house, and he had put in all the plastic piping, you know, and I was gonna test the joints, these are supposed to be glued together, with his pipe glue, right?

时我们家重新装潢 然後他安装了塑胶管，我看接合处 它们应该要黏好，要用接合剂黏好 对吧？

At the crotch or junction, these flukes slightly overlap, then sideways recede from each other like wings, leaving a wide vacancy between.

分叉或者是接合处，这两片尾叶略有重叠，然后像一对翅彼此斜着分开，中间留下一个很宽的空隙。

When a photon hits this junction of materials in the photodiode, called a p-n junction, an atom's electron absorbs the photon's energy, and as a result, it jumps up to a higher energy state and leaves the atom.

当一个光子击中光电二极管中的材料接合处，也就是p-n结时， 原子的电子会吸收光子的能量，从而跃迁到更高的能级并离开原子。