“valley spring”的概念、定义、翻译、参考文献-科学参考

单词	valley spring
释义	valley spring 谷泉侵蚀泉
随便看	Pitman estimator pitman head pitman-knife alignment pitman lead Pitman-Morgan test pitman pin Pitman's asymptotic relative efficiency pitman shaft pitman shaft bushing pitman socket pitman strap pitman stub pitman-type cutter pitman wheel pit membrane pit moulding pit mo(u)lding pitocin pit of the radicle pit of wood cell Pitometer pitometer pitometer log pitometer measurement Pitometer (测量流速的)

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