sirf
abbr.
silicon radio frequency (mixed-signal product) 硅射频（混合信号产品）;
例句:
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Which is a Win CE 2003 PDA with embedded Garmin GPS software and antenna with SIRF chipset.
来自ENGADGET
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Built - in high sensitivity sirf star iii gps receiver module.
内 置 高灵敏度sirfstariiigps接收模块.
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The M5 should use the currently available SiRF Star III GPS receiver technology.
来自ENGADGET