The reseach results are of guiding significance to the selection of the suitable length and internal diameter of the straight tube of spigot to meet different requirements.是什么意思_The reseach results are of guiding significance to the selection of the suitable length and internal diameter of the straight tube of spigot to meet different requirements.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句