modification

They have used the same process for almost 50 years with only minor modifications..同样的工序他们用了将近50年，期间只做过很小的改动。

surface modification,表面改质；表面饰变

chemical modification,化学修饰；化学改质

profile modification,齿形修整

equipment modification,设备修改

weather modification,人工影响天气

behavior modification,行为矫正

modification coefficient,变位系数

data modification,数据修改

addendum modification,齿高变位量；齿顶高修正

真题例句...Some people refer to such modification as maturity...第三套CET62016.6阅读理解