“sprag road”的概念、定义、翻译、参考文献-科学参考

单词	sprag road
释义	sprag road [`sprag ´rōd] ^{MINING ENGINEERING} A road so steep that sprags must be used on the wheels of ore cars during descent.
随便看	VSAT VSB VSC V-shaped depression V-shaped valley V/STOL aircraft vt fuse VTOC VTOL VTOL aircraft V-tool VTR VTVM VU vug Vulcan Vulcanian eruption vulcanization vulcanized fiber vulgar establishment Vulpecula vulture vulva vulval gland vulvovaginitis

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