hao123btc
㈠ 帮忙翻译一段化学专业文字
Double hydroxyurea (DHU) in organic synthesis as a recing agent efficient use of reagents can be used as the use of hydroxylamine. More importantly, the medicine can be used as cancer patients and chemotherapy drugs; in the field of biology can be used as a DNA replication inhibitor, can inhibit the root tip cells of many plant cell division, double hydroxyurea Purex process in the U / Pu separation application. Double hydroxyurea (DHU) is a synthesis of hydroxylamine hydrochloride Triphosgene and response system. Triphosgene dissolved in dioxane, the hydroxylamine hydrochloride dissolved in potassium acetate solution. Third, the use of non-toxic solid gas condenser (BTC) in the alkaline polymerization medium dissociation phosgene, phosgene monomer released by the phosgene molecule reaction with hydroxylamine hydrochloride double hydroxyurea (DHU). Solid at room temperature, phosgene is a solid, relatively stable, even when boiling, only a small amount of decomposition, as a substitute for phosgene, not only low-toxic and easy to use, and the mild reaction conditions, good selectivity and high yield. Alkaline conditions, broken down into two-hydroxyurea hydroxyurea, hydroxyurea hydroxyurea stable than the double
㈡ 成都做区块链的哪家好
现在做曲块链,哪家最好是看不出来,但是取块链是一个技术趋势
㈢ 星火矿池和鱼池哪个好
星火矿池和鱼池相比起来,还个鱼池好。