单词	经济修理寿命
释义	经济修理寿命economic repair life
随便看	underground survey underground surveying underground system underground transformer underground transmission underground transmission cable underground transmission line underground traverse underground utility supply duct underground water underground water course underground water(ground water) underground water--ground water-- phreatic water underground water level underground water parting underground water table underground work underground worker underground working underground workshop undergrove undergrown undergrowth under guarantee under hack