Chemical band combination

• 化学键偶联

Chemical band combination的用法和样例：

例句

1. Fiber reactive dyes are from true chemical bounds between dyestuff and fiber.
   纤维活性染料来源于染料与纤维之间形成的真正化学键。
2. Nanotubes are stronger than metal because the chemical bond holding them together is stronger.
   纳管之所以比金属硬，是因为把碳原子连在一起的化学键更强。