单词osel
网络: Open System Environment Language; 厄塞尔岛
Original OSEL battery we used was alkaline, but new battery looks heavy duty. how come?
我们原来用的OSEL电池是碱性的,但新电池看着像高能的,咋回事?
Office of Science and Engineering Laboratories, OSEL
科学与工程试验室办公室