A solid powdered chemical element was used to replace the mother liquid of the MS medium.
用固体粉状化学元素取代MS培养基中的母液，制作培养基。
2
Nacre: this element whitens and brightens skin, getting rid of spots and blemishes, while leaving your skin feeling soft with a mother of pearl finish.
珠母贝：这种成分能够亮白肌肤，去除斑点和瑕疵，同时珍珠母能保持肌肤柔软。
3
At night the indirect lighting details scattered throughout the house enhance this natural element as "mother" of the project.