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Therefore, the absolute configurations of C-4 for 1 and 2 were defined as S together. In a similar pattern, the calculated ECD spectrum generated by (6S, 7S, 8S, 9R, 10S, 11S)-3–5 was in agreement with the experimental ones showing a negative Cotton effect near 260 nm, which ...
经计算得知 :砂石加工系统的 生产能力为 258t/h.考虑到系统生产的不均衡性,取不均匀系数为1.1,则粗 碎车间的处理能力 Q=258×1.1=284(t/h),配置 C100 颚式破碎机 1台.当该设备的紧边排料口尺寸最小设置为 12.5 mm 时,其处理能力为 260~300t/h,功率为 110kW. 设备满足生产能力要求 . (2)预筛 ...
1.“看”:look; see; watch; observe; notice; catch sight of; stare; glare; glance; glimpse; see a film; watch TV 2.“说”:telll sth to sb.=tell sb sth; talk with sb about sth; say sth; speak in English; whisper sth to sb; inform sb of sth; reason /talk/persuade sb into ...