n.友好
亲善.
Study on Making Lignin-quaternary Amic Salt Flocculant from Lignin. 利用木质素制备木素季胺盐絮凝剂
The poly (amic acid) exhibited good solubility in common organic solvents. 该聚酰胺酸在普通有机溶剂中具有良好的可溶性.
Synthesize poly(amic acid) by s-BPDA and 4,4'-ODA at 1:1(mol ratio ) in DMAC. 本论文中我们合成了苯胺齐聚物-聚酰亚胺梯度渐变的膜材料，并对其进行了表征：（1）以DMAC为溶剂，以摩尔比为1：1的s-BPDA和4,4’-ODA合成聚酰胺酸。
A dyn amic fuzzy evaluation model is created,which is based on a discrete MARKOV process and fuzzy set theory. 利用马尔柯夫链和模糊集理论,建立多指标动态模糊评价模型。
The W.H.O. says about one and one-half thousands millon dollars will be needed over three years to prepare for append amic a pandemic . 世界卫生组织说在三年里为一个传染病准备的大约需要1500亿美元.
In dynamic experiment, a series of dyn amic caustic patterns surrounding the crack tip and fracture path are recorded. 在动态实验中,记录了裂纹扩展的过程和在此过程中不同时刻的焦散斑和裂纹扩展的路线。
