N - hydroxyethylpyrrolidone ( NHP ) was synthesized from � � - butyrolactone and ethanolamine on Y molecular sieve catalyst by two steps. 以改性Y分子筛为催化剂,γ-丁内酯和乙醇胺为原料,采用γ - 丁内酯法两步合成N - 羟乙基吡咯烷酮 ( NHP ).
The little girl pranced about the room in her new clothes.小女孩穿着新衣在屋里雀跃.He snorted and pranced and pawed at the floor in salivating lust and groveling need.他叽叽咕咕,摇头晃脑,两脚还在地上乱跺乱蹬,一副垂涎欲滴,苦苦哀告的样子.Their horses pranced and whi...
After each summit, he dispatched his emissaries to pitch their proposals.每次会晤之后他都派遣密使四处兜售他们的建议.My emissaries would certainly be detained.我的密使一定会被扣留.Be worthy emissaries of the Light.成为相称的光之使者....
Can improve the low limbs amyotrophy, varix, keep the good states of the skeleton and joint.能改善下肢肌肉萎缩, 静脉曲张, 保持骨胳及关节的良好状态.This medicine can relieve the symptoms of varix.这种药可以缓解静脉曲张.Esophageal varix ligation under endosc...
Claire positioned herself so as not to obstruct David's line of sight.克莱尔为了不挡住戴维的视线挪了一下位置。A number of local people have been arrested for trying to obstruct lorries loaded with logs.一些当地人因试图阻止满载原木的卡车通行而被逮捕。The defen...