n.化学键...

The adhensive forces were found to be related to the metal to oxygen chemical - bond energy.已经发现,粘着力与金属-氧的化学结合能有关.Chemical bond mainly includes electrovalent bonds , covalent bonds, and metalic bonds.化学键主要有离子键 、 共价键 、 金属...

chemical bond的音标：chemical bond的英式发音音标为：['kemikəl bɔnd]chemical bond的美式发音音标为：['kɛmɪkəl bɑnd]...