检查和修改拼写和语法错误润色：We detected two broad absorption systems systems A and B in C iv and the system A also showed in Si iv ion

We detected two broad absorption systems (Systems A and B) in C IV, and System A also showed in Si IV ion. We suggest revising this sentence to: "We detected two broad absorption systems (Systems A and B) in C IV, and System A was also evident in Si IV ions."