header support

例句：

1. 1. header support, 2.head-up support, 3. top-down support例句：1. The new design of the product provides excellent header support for users.
   新产品的设计为用户提供了极好的头部支持。
2. 2. In the event of a power outage, the system will automatically switch to header support mode.
   在电力中断的情况下，系统将自动切换到头版支持模式。
3. 3. The company's strategy relies heavily on header support and innovation.
   该公司的战略严重依赖于头版支持和创新。