起步阶段,东方电气的科研人员只能靠着有限的资料摸索前行,没有先进的试验设备,就自主搭建简易试验台;没有成熟的制造工艺,就反复打磨、不断试错。任务艰巨,但咬定目标,百折不挠。
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The plants themselves contribute to the problem. Desalination is energy-intensive, with plants worldwide producing between 500 and 850 million tons of carbon emissions annually, approaching the roughly 880 million tons emitted by the entire global aviation industry.
南方周末:这些演出安排是出于肖赛冠军头衔的义务吗?