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| OPOS (A widely-adopted POS device standard initiated by Microsoft, NCR, Epson, and Fujitsu-ICL to help integrate POS hardware into applications for the Windows™ family of operating systems) | |||
| 英语 词库 | |||
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| oxidized porous silicon | |||
| outside production ordering system | |||
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| oxygen doped polysilicon | |||
