polar covalent bondpolar covalent linkpolarized covalent bond共价键: covalent bond极性共价: polar covalence共价键: covalent bond◇共价键带 covalent bond band非共价键: non covalent bond; non-covalent bond共价键半径: covalent radius下载手机词典可随时随地查词查翻译
