Programmable Read-Only Memory.
可编程只读存储器。
Contained within the ECM is a removable calibration unit, on programmable read - only memory.
包含在ECM内的是一个可动的校正装置，或是可编程序的读存储器。
Erasable, Programmable Read-Only Memory. A type of ROM that can be erased by exposing it to ultraviolet light.
一种可用紫外线擦除的存储器。
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