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Coal burning is no longer a major source of PM2.5 - particulate matter less than 2.5 micrometres in diameter - in Beijing, according to a study published last month by the Beijing Environmental Protection Bureau.

Commissioner Carlos Velategui granted a temporary restraining order sought by Amazon as part of its lawsuit against Gene Farrell, former vice president of AWS enterprise applications and EC2 Windows, and now senior vice president of product at Smartsheet.?The ruling by the court commissioner marked a temporary blow to Smartsheet, but the big showdown over Farrell’s move to the Bellevue, Wash.-based work management company comes next week.

Concern over the escalating nature of the tit-for-tat tariff dispute between the China and the US prompted the Toy Association to join the coalition, said Steve Pasierb, president and CEO of the group.

Compared with traditional types of rocket engines, oxygen-methane engines are reusable.

Co-produced by CCTV+ and Beijing Foreign Studies University, the annual report stresses the increasing convergence of "TMT which means telecom, media and technology.