case 2: h ^= data[1]
First, a bit of background so we know what to expect: a TCXO is a Temperature Compensated Crystal Oscillator (“crystal oscillator” is often abbreviated XO - presumably the X is actually a Greek chi as in Xmas and LaTeX? I’ve never looked into the etymology but that was my first guess).，推荐阅读新收录的资料获取更多信息
。新收录的资料对此有专业解读
«Запасов газа осталось на два дня». Европа становится уязвимой из-за конфликта на Ближнем Востоке. Почему?00:54
FT App on Android & iOS，这一点在新收录的资料中也有详细论述