She's trying to land the chopper safely, but the chopper doesn't land safely, and the reason it's not landing safely is because it's not responding to the commands that her legs are giving because her legs were blown off.
她试图安全降落直升机， 但直升机不能安全降落， 不能安全降落的原因 是因为直升机对她双腿发出的指令没有反应， 因为她的双腿已经被炸飞。