基本解釋[機(jī)] 統(tǒng)一標(biāo)準(zhǔn)粗牙螺紋詞組短語(yǔ)短語(yǔ)unified national coarse thread 統(tǒng)一標(biāo)準(zhǔn)粗牙螺紋unc unified national coarse thread 統(tǒng)一標(biāo)準(zhǔn)粗牙螺紋unified coarse thread series 統(tǒng)一的標(biāo)準(zhǔn)粗牙螺紋系列Unified coarse thread hand taps 統(tǒng)一標(biāo)準(zhǔn)粗牙絲攻unified coarse thread更多詞組專(zhuān)業(yè)釋義機(jī)械工程統(tǒng)一標(biāo)準(zhǔn)粗牙螺紋統(tǒng)一粗牙螺紋