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TT300超声波测厚仪使用说明书测量技术TT300超声波测厚仪清洁表面测量前应清除被测物体表面所有的灰尘、污垢及锈蚀物,铲除油漆等复盖物。TT300测厚仪提高粗糙度要求过份粗糙的表面会引起测量误差,甚至仪器无读数。测量前应尽量使被测材料表面光滑,可使用磨、抛、锉等方...
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