Menaquinone ( vitamin K _ 2 ) is a high efficiency counteractant bleeding medicament.维生素K_2是高活性的抗出血药物....

menaquinone的音标：menaquinone的英式发音音标为：[menəkwɪ'nəʊn]menaquinone的美式发音音标为：[menəkwɪ'noʊn]...

n.甲基萘醌类，维生素K2类...