The composition and working principles of an acoustic fiber optic monitoring system adopted to forewarn the failure of PCCP (Prestressed Concrete Cylinder Pipe) are described.是什么意思_The composition and working principles of an acoustic fiber optic monitoring system adopted to forewarn the failure of PCCP (Prestressed Concrete Cylinder Pipe) are described.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句