in-core compiler

例句：

1. 1. The in-core compiler is responsible forcompiling the source code into machine code.
   内核编译器负责将源代码编译成机器代码。
2. 2. The in-core compileris a critical component of the operating system.
   内核编译器是操作系统的关键组件。
3. 3. The in-core compiler optimizes theperformance of the computer by reducing the amountof memory used.
   内核编译器通过减少内存使用量来优化计算机的性能。