This needs the three sit diagraph instrument to measure the curvature of shadow mask, or size of Q with high accuraty , stability and credibility .是什么意思_This needs the three sit diagraph instrument to measure the curvature of shadow mask, or size of Q with high accuraty , stability and credibility .在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句