... 使用者调整系统 user-tuned system 通常算术转换usual arithmetic conversions 篡位 usurpation ...
3
?常用算术类型转换
C 语言规定了一类类型转换，称作“常用算术类型转换”（Usual arithmetic conversions），用于表达式求值的类型调整，常见的“低精度类型向高精度类型靠”的说法即出于此。
双语例句
1
If both expressions are of arithmetic or enumeration types, the usualarithmeticconversions (covered in arithmetic conversions) are performed to convert them to a common type.
如果两个表达式类型不相同，但是都是算术或者是枚举类型。那么算术转换将他们转换成共同类型。
2
As you probably suspect, the integer conversion rank is used to define the rules for expression evaluation. Those rules are named the integer promotions and the usualarithmeticconversions.