把Chemical components翻译成汉语

把Chemical components翻译成汉语 Components’ 这句话怎么安排合适First,Four issues--the structural characteristics,the methods of extraction and isolation,the physical and chemical properties and structural identifications—are been studied of various chemical components and active cons chemical bolt和chemical geared components components是什么意思 chemical是什么意思 chemical-free chemical是什么意思 Chemical communications 求英语牛逼的大大帮忙总结（缩写）下这2个短文哈!要用英语的~急要!read the following passages and summarise each one of them!PASSAGE1In chemical cells,electricity is produced by chemical reactions between the components.These non-chemical 和chemical free sample components checklist components什么意思 turning components是什么意思 imported-components是什么意思 components services是什么意思 essential-components是什么意思