But submarine pipeline often loses its function under abominable working conditions because of corrosion,scour,mechanical damage etc. The security of submarine pipeline has been the question that people have paid close attention to all the time.是什么意思_But submarine pipeline often loses its function under abominable working conditions because of corrosion,scour,mechanical damage etc. The security of submarine pipeline has been the question that people have paid close attention to all the time.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句