The range of both int and float depends on the machine you are using; 16-bits ints,which lie between -32768 and +32767,a

The range of both int and float depends on the machine you are using; 16-bits ints,which lie between -32768 and +32767,are common,as are 32-bit ints
这句话的意思我看得懂,但不懂are common,as are 32-bit ints的用法
请问 are common,as are 32-bit ints 这里是什么语法结构,