... tangent of helix angle 导程角正切，螺旋角正切 tangent of the loss angle (电容器的)损耗角正切 tangent pitch tube furnace 密排管炉膛(无间隙)，切[接]管炉膛 ...
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Of a dielectric the product of dielectric constant and the tangent of its dielectric loss Angle; a measure of the heating effect which occurs in dielectrics.
对于电介质来说，它是介电常数和介质损耗角的正切的乘积，这是对出现在电介质中的热效应的量度。
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