“ball check”的概念、定义、翻译、参考文献-科学参考

单词	ball check
释义	ball check 球形单向阀
随便看	diveded shield dive flap diver diverge divergence divergence angle divergence-angle correction factor divergence boundary divergence curve chart divergence (-cy) divergence(-cy) divergence expression divergence factor divergence field divergence half-angle divergence indicator divergence line divergence loss divergence of a vector divergence of a vector-valued function divergence of pipe divergence point divergence problem divergence rate divergence ratio

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