The giant bill of the chestnut-mandibled toucan makes up a third of the bird's body length, but thanks to a honeycombstructure, it's not as heavy as it looks.
栗嘴巨嘴鸟很大的喙占据了它身体的三分之一长度，但由于其为蜂巢式结构，它并没有看起来那么重。
2
Honeycombstructure is difficult to be tested by the traditional nondestructive testing methods.
蜂窝结构是常规无损检测方法难以检测的对象。
3
Its honeycombstructure keeps bones light, in contrast to the heavier, compact bone, which gives it strength.