By using the types of stiffeners, the thickness of the composite panels and the arrangement of the goggle pins as the parameters, mechanical performance tests were made on 9 composite panels.是什么意思_By using the types of stiffeners, the thickness of the composite panels and the arrangement of the goggle pins as the parameters, mechanical performance tests were made on 9 composite panels.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句