an envelope of 有没有表观的意思？

an envelope of 有没有表观的意思？ back-of-an-envelope怎么翻译? an envelope of 的用法This is an envelope of gasses around the planet请问汉语意思! An envelope 什么意思 back-of-the-envelope envelope of the pulse how is an envelope 改正错误 谁知道什么叫表观弹性模量 定义是什么如题,有谁知道吗 表观弹性模量 英文解释是apparent modulus of elasticity i have some writing paper an a envelope 怎么改错 Why do you want an envelope?同义句 I want an envelope,please.改为同义句 we usually go round with an envelope during coffee break 这里 go round with an envelope 不要 用翻译软件! 表观密度与容重有什么区别? 表观密度和密度有什么区别? 表观密度和密度有什么区别? 表观遗传的调控方式有哪些? 英语翻译• Immigration photographs are not the same as passport photographs.Please:• enclose 6 photographs in an envelope;• place photographs of different individuals in separate envelopes;• do not write at back of the phot Why do you want an envelope?(同义句转换） ________ _______ you want an envelope?打错了，是Why do you want an envelope?(同义句转换）________ _______ you want an envelope________?