retrofitting的翻译，读音
释义：
n. 改装
v provide with parts, devices, or equipment not available or in use at the time of the original manufacture
v fit in or on an existing structure, such as an older house
v substitute new or modernized parts or equipment for older ones
v provide with parts, devices, or equipment not available or in use at the time of the original manufacture
v fit in or on an existing structure, such as an older house
v substitute new or modernized parts or equipment for older ones