常见例句Synthesis and application of acetimidoyl ethyl ether hydrochloride 亚氨基乙醚盐酸盐的合成与应用A new process for preparation of acetimidoyl ethyl ether hydrochloride 乙亚氨酸乙酯盐酸盐的制备新工艺研究acetimidoyl group 亚氨逐乙酰基, 1-亚氨乙基 返回 acetimidoyl