He lived long enough to see in the new millennium.他活到了新千年.The whole world was counting down to the new millennium.全世界都在倒计时迎接新千年的到来.Acupuncture was practised in China as long ago as the third millennium BC.中国早在公元前3,000年就已...
碳化植物残余通常是丰富的.Carbonized plant remains are commonly abundant.它是阳光与大气中的碳化氢和氧化氮作用的结果.It is the result of sunlight reacting with hydrocarbons and nitrogen oxides in the atmosphere.叙述了PI原丝的碳化和石墨化过程.The carbonization and the g...