短语词组短語polar covalent bond [物化]極性共價鍵;則分子爲極性分子;極性共價健polar r bond 極性鍵non -polar bond [物化]非極性鍵;非極性共價鍵;繙譯;非極性鍵non polar bond 非極性鍵Polar of Covalent Bond 鍵的極性semi polar bond 半極性鍵non n polar bond 非極性鍵Semi -polar Bond 半極鍵 返回 polar bond