实心棒对比试块应在外表面制备纵向槽。
The reference standard for solid bars shall contain a longitudinal (axial) reference notch on the outside surface.
本实用新型提供一种高压支柱瓷绝缘子超声波探伤对比试块。
The utility model provides an ultrasonic fault detection comparing test block for a high-voltage pillar porcelain insulator, consisting of a test block body and arc grooves.
目前常用的补偿藕合损耗的方法是根据材质制作对比试块，但该方法费时费力。
The common method to compensate the coupling loss is to make various reference blocks according to the material of workpieces, obviously it consumes time and labor.
对比试块应从与待检材料有相同的公称外径、材质和热处理状态的棒或管上制取。
The reference standard, of convenient length, shall be prepared from a length of bar or tube of the same nominal outside diameter, material and heat-treatment as the material examined.
对比试块应从与待检材料有相同的公称外径、材质和热处理状态的棒或管上制取。
The reference standard, of convenient length, shall be prepared from a length of bar or tube of the same nominal outside diameter, material and heat-treatment as the material examined.
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