Knotted at her throat she wore a lilac scarf that even in the achromatic sunshine cast its color up to her face and down around her moving feet in a lilac shadow.

她的脖子系着一条淡紫色的巾，即使在无色的阳光下，它的颜色也一直到她的，在她移的脚周出淡紫色的阴影。

In the early 19th century, better quality achromatic microscopes created the new field of histology, the microscopic study of cells and tissues, which led to a number of neurological revelations.

19世纪初， 更高质量的消色差显微镜催生了组织学这一新领域，即对细胞和组织的显微研究，从而揭示了诸多神经学的重要发现。

He levelled the achromatic at Sirius.

他将消色差望远镜对准天狼星。