na2s中文是什么意思

千萬人都在用的超大詞匯詞典翻譯APP

Synthesis of amino diphenyl ethers by na2s reduction
鹵代氨基二苯醚的合成研究
The corrosion behaviors of hot - dipping aluminium steel in na2s solution
溶液中的腐蝕行為研究
Ab initio study of structures for li2o , li2s , na2o , na2s molecules
堿金屬氧化物和硫化物分子結構的從頭算研究
Determination content of na2s with the use of precipitation separation - complexmetric titration
絡合滴定法測量硫化鈉含量
2m / 1 , the concentration of na2s is 0 . 1m / l , the temperature of sncl2 solution is 70c and na2s is room temperature
氯化亞錫溶液的反應溫度是70 ，硫化鈉溶液的反應溫度是室溫。
Moreover , in our work , it was found that the pbs nanoparticles were formed by using other sulfur source or a ph value less than 7 in the hydrothermal method . when using pbso4 and na2s as reactants , the autoclave was maintained at 200c for 20h , the products were pbs nanorods
以醋酸鉛和硫脲為先驅體， ph值大于10 ，在200下反應24小時，是制備pbs星狀結構的最佳條件；改變硫源或體系ph值小于7時，所得產物均為pbs納米顆粒。