In system safety theory, the problem to realize the given value of system safety target by deciding the reliability of each basic event has not been well solved till now.是什么意思_In system safety theory, the problem to realize the given value of system safety target by deciding the reliability of each basic event has not been well solved till now.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句