字典網>> 英漢字典>> G開頭詞條>>gear rotary pump的意思 漢英字典gear rotary pump中文翻譯：【化】 齒輪泵 gear rotary pump相關詞條：gearing ratios gear tooth vernier calipers gear box gear ratio gear reduced drive gear guard gear case oil gear shifting lever geared crane ladle geared turbine