单词	pitch spot
释义	pitch spot 树脂斑
随便看	dielectric amplification dielectric amplifier dielectric analysis dielectric anisotropy dielectric anomaly dielectric antenna dielectric attenuation dielectric bead dielectric beamsplitter dielectric body dielectric breakdown dielectric breakdown strength dielectric breakdown test dielectric breakdown voltage dielectric capacitance dielectric capacity dielectric ceramic dielectric ceramics dielectric characteristic dielectric charge absorption dielectric circuit dielectric coated mirror dielectric coating dielectric coefficient dielectric compliance 132512121 132512134 132512141 132512151 1325122 132512234 132512343 132512411 132512412 1325124*21 28548 28549 28550 28551 28552 28553 28554 28555 28556 28557