英语词汇lower index怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

短语

1
A waveguide is characterized by a region of high refractive index bounded by regions of lower index.
波导就是折射率高的区域由折射率低的区域包裹的结构。
2
The core has a high index of refraction, whereas the surrounding cladding, with its air holes interspersed with silica, has a lower index.
核心的石英折射系数高，环绕在外的外层石英与孔洞交错，所以折射系数较低。
3
The covering material that encases the core of an optical fiber. the cladding material usually has a lower index of refraction than the core material and may be either glass or plastic.
一种包装光纤芯的保护材料。保护材料的折射率通常比光纤芯的折射率低，它一般是玻璃或塑料。

单词	lower index
释义	lower index 简明释义下标；较低的指数网络释义 1 ?下标 ... 下半平面 lower half plane 下标 lower index 下限 lower limit ... 短语 1 lower index glass tube 较低折射指数玻璃管 2 Index Lower Pane 索引下窗格 3 medium of lower refractive index 低折射率介质双语例句 1 A waveguide is characterized by a region of high refractive index bounded by regions of lower index. 波导就是折射率高的区域由折射率低的区域包裹的结构。 2 The core has a high index of refraction, whereas the surrounding cladding, with its air holes interspersed with silica, has a lower index. 核心的石英折射系数高，环绕在外的外层石英与孔洞交错，所以折射系数较低。 3 The covering material that encases the core of an optical fiber. the cladding material usually has a lower index of refraction than the core material and may be either glass or plastic. 一种包装光纤芯的保护材料。保护材料的折射率通常比光纤芯的折射率低，它一般是玻璃或塑料。
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