The ranges of most optical methods which are used in high precision surface profiling, are limited by the wavelength of light.

在较高精度面形测量的光学方法中，很多测量范围都受到光波波长的限制。

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The LMI ripple gauge was designed to be a high accuracy surface profiling gauge which was originally developed for Boeing to measure ripples in the outer skin of aircraft.

LM I纹波计被设计成一个高精度表面剖面测量产品，最初是为波音公司开发的，测量飞机外壳的波纹。

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It is a collaborative partnership of more than 30 nations from all continents, all working together to provide a seamless global array of over 3, 000 profiling floats moving up and down in the water column from the sea surface to 2, 000 meters and measuring temperature, salinity, and depth during every ascent to the sea surface.

UNESCO: Building the Wealth of Nations