Definite Analysis on the Standard for the Allowable Deviation of the Positive Vector in Measuring a Curve with a 10-m String in Subway是什么意思_Definite Analysis on the Standard for the Allowable Deviation of the Positive Vector in Measuring a Curve with a 10-m String in Subway在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句