英语词汇“chalcolithic period”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	chalcolithic period
释义	Chalcolithic period Chalcolithic period the copper and stone age, regarded as occurring in the period 5000 BC to 3500 BC.
随便看	biomass foam immobilized extractant biomass fuel biomass gas biomass gasification biomass gasification and power generation biomass gasification combined cycle biomass gasification engine system biomass gasification group biomass gasifier/gas turbine biomass integrated gasification combined cycle biomass power biomass power for rural development biomass production biomass production system biomass pyramid biomass research and development initiative biomass stove biomass surface characterization laboratory biomass syngas development, inc biomass technology group bv biomass thermal energy council biomass to energy biomass-to-hydrogen biomass to liquid fuel biomass to liquids

英语词典包含2567994条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。

Chalcolithic period