The vowel in words like "my" and "thigh" is not very difficult.单词my和thigh中的元音并不难发。English has hurt me a thousand times, but I still regard it as my first love.英语伤我千百遍,我待英语如初恋。I feel it's done me good to get it off m...
AZO is deposited by electronic beam evaporation on the K 9 substrates.本文用电子束蒸发的方法在K9玻璃上制备了AZO薄膜.The photo - catalytic degradation of an azo - dye acid red G.用固载的二氧化钛光催化降解 偶氮染料 酸性大红G溶液.All non azo dye ingredients, in line...