这种方法要求被测试样安置在地面或者天花板上，然后面向燃气火焰。
It requires that a test specimen be installed in a horizontal (ceiling) position and then be exposed to a gas burner flame.
采用单一参考测量双向散射分布函数时，要求被测试样与参考标准的入射天顶角必须相同。
When using a single reference to measure the bi-directional scattering distribution function (BSDF), the incident zenith angle of the tested sample must be identical to that of the reference.
自行研制了大电机定子绝缘超声波检测系统，它能同时显示被测试样的A扫描脉冲回波和C扫描平面图。
A new ultrasonic testing system has been developed for application to stator insulation of large generator. It provides A-scan signals and C-scan map for tested specimen.
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