requisite amount meaning in Chinese

规定量
需要量

The process by which the transformer is enabled to draw the requisite amount of power is as follows .
使变压器能够从电源输入必要数量的功率的过程如下。
Instruction allocates the requisite amount of memory and performs any format conversion required to convert the string literal from the form used in the file to the string format required at runtime
指令分配必需的内存量并执行将字符串从在文件中使用的形式转换为在运行时要求的字符串格式所需的任何格式转换。