Aim To study the synthetic method for the glutaric dialdehyde.目的研究戊二醛的新合成方法.The cross - linking reaction between dialdehyde compound and cellulose acetate raises the chemical stability of the material.通过二醛类与醋酸纤维素类材料的交联反应...
Each bobble is magnetized in one direction or the other.每个磁泡可以按不同方向磁化....the bobble on his nightcap.他睡帽上的小绒球" Give her here, Bobble, " Claggert said and shooed his son back to the porch.“ 把她牵到这儿来吧, 博比, ” 克拉杰特说,并把他儿子嘘回走廊....
新闻自由是神圣不可侵犯的。Freedom of the press is sacrosanct.我解释说,每个人对于自由是什么都有不同的观点。I explained that each person has different ideas of what freedom is.他的自由是虚幻的。His freedom is illusory....