substance与material的区别?

substance与material的区别? matter substance material的区别matter substance material都有物质的意思,但他们有什么区别呢? material和stuff和substance aking of material or substance material和substance都有材料的意思,它们的区别 英语翻译是Energy substance还是Energy material？ covalent molecular substance 和 covalent network substance的中文意思 英语翻译VERBIAGE MAY VARY IN MATERIAL SUBSTANCE BUT THE ESSENTIAL UNDERTAKING MUST BE MAINTAINED material的用法?与stuff有何区别? substance 有宗旨的意思吗? 英语翻译The substance or material dealt with in a speech,literary work,etc.,as distinct from its form or style 一道英语问题： This curtain material is very good ( ) A.clothes B.cloth C.substance D.matter 谢谢啦 放射性物质怎么翻译?是radioactive substance呢,还是radioactive material（有没有s）?还是···? 职位material coordinator与material supervisor区别我想请问一下美资企业中material coordinator与material supervisor两个职位有什么区别?1、两个职位哪个职位等级更高?2、一般来说各做哪方面的工作?请有这 drug substance和drug products的区别?drug substance和drug products的区别是什么? material的意思 英语翻译如substance abuse、substance dependence两个词组.是后来衍生出来的吗 covalent molecular substance 和 covalent network substance的中文意思covalent molecular substance 和 covalent network substance对应的中文是什么?在分类讨论物质熔点的时候看到的,metals,ionic substance,covalent molecular subs