if temp < -273.15 {
2.2.1. Missing parentheses
，更多细节参见pg电子官网
玻纤布是制造PCB和IC封装基板的上游核心材料。它的短缺，意味着从AI芯片的先进封装到消费电子的终端产品，整条半导体产业链都将承受成本上升和交期延长的压力。目前上游材料厂的订单排期已长达半年，下游PCB厂商则因AI需求迎来业绩高增长，而英伟达CEO黄仁勋据报道已亲赴日本拜访上游供应商以确保材料供应。终端芯片公司直接找到最上游的材料厂，这在半导体行业中极为罕见。此次玻纤布短缺引发的问题，到底有多严重？
Lucid Motors will ship a software update to North American owners of its Gravity SUV on Thursday that will enable Apple CarPlay and Android Auto, the company announced Wednesday morning. Owners in Europe and the Middle East will receive the update in “late March.”