Then comes certification testing. These tests are defined by standards bodies such as the 3gpp for cellular tests.

然后是认证测试。看是否达到如蜂窝测试以3gpp的标准。

youdao

Then comes certification testing. These tests are defined by standards bodies such as the 3gpp for cellular tests.

然后是认证测试。看是否达到如蜂窝测试以3gpp的标准。

youdao