#resistance#

JD.com's 618 book promotion plan is resisted by publishing institutions, and its founder Liu Qiangdong's past response is also mentioned. The article explores the impact on the book market. (less than 150 letters)

CRRC's world-first low-temperature-resistant automatic hydrogen refueling robot completes system commissioning, can operate in minus 25 degrees Celsius and has a high refueling flow rate.