燃气和电重型烹调炉的标准规范: standard specification for heavy-duty ranges gas and electric
维修: keep in (good) repair; service; maintain 短语和例子维修良好 in good repair; 维修房屋 maintain houses and buildings; 维修汽车 service a car; 设备维修 maintenance of equipment; upkeep of equipment; 需要维修 need (pu
