To form a chemical bond的意思|示意

What's more, they've shown that these amino acids can react with each other to form a different kind of chemical bond to those which usually hold proteins together in their three-dimensional shape.

更重要的是，他们已经表明，这些氨基酸可以相互反应，形成与通常维持三维形状的蛋白质不同的化学键。

A chemical bond in which one atom loses an electron to form a positive ion and the other atom gains to electron to form a negative ion.

一个原子失掉一个电子来形成一个正离子，另一个原子得到一个电子来形成一个负离子的化学键。