“stepped ramp”的概念、定义、翻译、参考文献-科学参考

单词	stepped ramp
释义	stepped ramp 阶形坡道
随便看	purpuric purpuric acid purpurin purpurin red purpurite purpuroxanthin purr purring purring thrill purseful purse seine purse-string suture purshianin purslane pursue pursue a claim pursuit pursuit-evasion problem pursuring speed to match others Purtscher's disease purulence purulency purulent purulent choroidal detachment purulent conjunctivitis

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