精译求精 英译汉 2013.4.15(周一)? analysts said the visit is intended to update views on key regional issues between the two countries ' new leaderships , while it is hoped tangible progress can be achieved in terms of cooperation and strategic mutual trust . 精译求精活动请注意: 1、回复之前请先阅读前面各位朋友的翻译,如果自己的翻译和前面某位朋友的翻译类似,则请不要发布雷同的翻译。 2、回帖不必隐藏,以便他人进行点评。 3、禁止发灌水贴,禁止人身攻击言语诽谤。 4、版主评分时以+5财富为基准,视回帖质量进行评分增减。鼓励大家给优秀的翻译和点评加分,但是禁止恶意互评。 5、欢迎广大朋友提出宝贵建议,可直接发站内消息给版主或本帖跟帖提出。 祝大家天天开心! 查看更多
该化合物的合成方法? 1-phenyl-2-methyl-5-pyrazolone in 150 cc. pyridine is treated with 10 g . mecoch2so3h, refluxed 30 min., cooled, filtered, and the residue suspended in 500 cc. meoh and hydrogenated to give 1-phenyl-3-methyl-4-( a -methyl- b -sulfoethyl)-5-pyrazolone 这是一个类似的反应,结合semish这位仁兄思路看看是不是有用。 查看更多