| 释义 |
〔vergence〕The inward or outward turning of one or both eyes that occurs when focusing on an object.注视点：目光集中在一个物体上时，单颗或两颗眼珠向内或向外的转动〔orthoclase〕A variety of feldspar, essentially potassium aluminum silicate, KAlSi3O 8, characterized by a monoclinic crystalline structure and found in igneous or granitic rock. Also called potash feldspar 正长石：一种长石类，特别是钾、铝、硅合物，KAlSi3O 8，其特征为单颗晶体结构，发现于火山岩或花岗岩中 也作 potash feldspar |