The details vary with different authors but the core of the Art remains constant.
不同的细节,但不同的作者对艺术的核心保持不变。
Permeability is measured by constant pressure air source blowing, core of the detector is micro differential pressure sensor.
透气性测定通过恒压气源吹气测压法实现,透气性探头的核心部件是微压差传感器。
The index of refraction of the assembly varies across the radius of the cable, and the core has a constant or smoothly varying index of refraction called nc.
折射指数的大会有所不同半径的电缆,其核心具有恒定或顺利不同折射率称为数控。
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