The flip side is that, in contrast to normal page requests, the portal does not provide any default header information for the response; all information must be explicitly set during resource serving.

另一面在于，与普通页面请求相反，门户不为响应提供任何缺省标头信息；所有信息都必须在资源服务过程中显式地进行设置。

youdao

Of course, the [0, 0, -1] vector is also perpendicular, and you can flip the Face object's normal vector by calling the reverse!

当然，[0,0，- 1]向量也是垂直的，可以通过调用reverse ！

youdao

Other immune cells carry molecular keys or ligands named PD-L1 orPD-L2, which can flip that switch to protect normal tissues from collateral damage.

其他免疫细胞携带有PD-L1 或PD-L2的分子键或配体，它们能够保护正常的组织免于附带损伤。

youdao