英语词汇“back-up valve”的读音、翻译、释义、用法及例句-啃外文网

词汇	back-up valve
释义	见:valve: back-up valve
随便看	geminal substituted hydrocarbons geminate geminated consonant geminate fertilization gemination gemini geminicolpate Geminids geminiflorous Geminol gemless gemlike gemma Gemma gemma cup gemman gemmary gemmate gemmatin gemmation gemm-comb.f. gemmho gemmifer gemmiferous gemmiform

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