carry input meaning in English

进位输入端
移位输入端

It is called "half-adder" because it has only two inputs and does not provide for a carry input .
它之所以称为半加器是因为它只有两个输入，即没有进位输入。
It also contains carry input to certain integer arithmetic operations and the number of bytes to transfer during load and store string instructions ,
它还存放某些整数运算操作的进位输入以及加载和存储指令（