或许这个过程应正确地称为氟化.Perhaps the process should rightly be called fluoridation.异氰酸酯可由含氯的环(或非环)状分子氟化而得.The isocyanates can be obtained by the fluorination of nitrogenous cylic or acyclic molecules.在氟化过程中需要用一架 大功率 的电磁搅拌器.A heavy...
He was paid a modest emolument.他获酬甚微.Finns are very modest and downplay their own accomplishments.芬兰人是非常谦虚,淡化自己的成绩.The price is very modest.价格是适中的。His head was modest wedge - shaped, high - cheekbone, nose slightly short...
In addition to the dirty of volatile solvents, to airproof.不兴不净剂洋的溶剂难挥发, 给夺目密封.It has good endurance against grinding, aging and good airproof performance.具有良好的耐磨性 、 耐老化性和气密性.Water - cool homogenizing airproof structure ...