ISOFIX is designed to provide more rigid support for the restraint than a conventional design using the car's belts.

与利用安全带接口的传统儿童座椅相比，ISOFIX是为了给儿童座椅提供更强的支撑而设计的。

The advantage of Isofix is that it is simple and fool-proof to operate and holds the child seat firmly in the vehicle.

Isofix的优势在于它是简单而十分简单的操作，并且能够把孩子牢牢锁定在汽车座位。