文章重点分析干涉条纹的快速调整方法与标准平晶平面度的正确引用方法。
Quick adjusting method of interference fringes and correct quotation method of standard optical flat flatness are analyzed.
为什么在温度变化时雪晶的形状也随着变化，从薄且平的盘状变成长且细的针状，这仍是一个科学之谜。
Why snow crystal shapes change from thin, flat plates to long, slender needles when the temperature changes remains something of a scientific mystery.
另外，薄膜硅技术也被开发出来，将非晶硅或者微晶硅薄膜放到玻璃那样的平的大面积衬底上。
Besides, thin-film silicon technologies have also been developed to place a thin film of amorphous or microcrystalline silicon onto flat large-area substrates such as glass.
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