英语词汇useful life是什么意思，useful life的用法、释义、翻译、读音、例句、短语词组-英汉汉英翻译词典

单词	useful life
释义	useful life　【化】有效期; 使用寿命【经】可用年限, 有用寿命
随便看	spark plug body spark plug centre rod spark plug cleaner spark plug extension spark plug fouling spark plug gasket spark plug insulator spark plug pliers spark plug porcelain insulator spark plug post spark plug socket wrench spark plug terminal spark plug tester spark plug type indicator spark preventer spark producer spark protractor spark quenching spark quenching capacitor spark quenching circuit spark quenching condenser spark recorder spark regulation spark resistance spark signal

英汉汉英翻译词典包含1679246条英汉翻译词条，基本涵盖了全部常用英语单词及常用语的翻译及用法，是英语学习及翻译工作的有利工具。