本文应用三乙胺催化聚合丙炔醇.The polymerization of propargyl alcohol catalyzed by triethylamine was carried out for the first time.本文首次应用三苯膦引发丙炔醇光聚合,制得黄色粉末状、具有共轭双键结构的聚丙炔醇.The photopolymerization of propargyl alcohol inpresence of trip...
A hedgehog rolls itself into a ball when attacked.刺猬一受到攻击就蜷缩成一团.The hedgehog rolled itself up.刺猬把身子蜷缩成一团.A hedgehog's spines point backwards.刺?的刺毛是向后长的....
Haig noted how he "looked pinched and rather tired".黑格注意到了他“看上去消瘦，非常劳累”的样子。Its books are noted for the quality of their paper and bindings.其图书以纸质优良、封面精美而闻名。Official handouts describe the Emperor as "particularly noted as...