目前数码视频监控系统大多采用MPEG1、MPEG2的编码标准，导致视频存储成本高，网络负载重。
Nowadays most digital video monitor systems are using MPEG1 or MPEG2 encoding standard, which leads to high cost of video storage and network translation load.
美国承诺将于2016年制定完成其下一阶段、世界级的载重汽车燃油效率标准，并于2019年实施。
The United States commits to finalize its next-stage, world-class fuel efficiency standards for heavy-duty vehicles in 2016 and implement them in 2019.
美国承诺将于2016年制定完成其下一阶段、世界级的载重汽车燃油效率标准，并于2019年实施。
The United States commits to finalize its next-stage, world-class fuel efficiency standards for heavy-duty vehicles in 2016 and implement them in 2019.
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