研究开发了用于测量飞机跑道摩擦系数的测试车。
A vehicle used to measure the friction coefficients of airstrip is researched and developed.
试验模态分析的历史始于1940年，用于测量飞机的模态参数，以准确预测颤振问题。
The history of experimental modal analysis began in the 1940's with work oriented toward measuring the modal parameters of aircraft so that the problem of flutter could be accurately predicted.
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。
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.
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