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...
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 ...
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...