商谈
发表于 2025-3-28 18:10:48
Water Electrolysis source of hydrogen was active. For producting 1 ton of ammonia, 2, 100 Nm. of hydrogen and 700 Nm. of nitrogen are required, as shown in Table 5.1.. Of these, relatively cheap nitrogen can be supplied by means of air liquefaction, and hence the manufacturing cost of ammonia depends largely on the p
SHOCK
发表于 2025-3-28 19:26:20
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雪上轻舟飞过
发表于 2025-3-29 00:46:51
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遍及
发表于 2025-3-29 05:25:35
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抒情短诗
发表于 2025-3-29 08:28:13
Making Science Global? Coordinated Enterprises in Nineteenth-century Scienceat the IPYs were representing a new path for science. It is the contention of this essay that there was little that was radical about the IPYs. For the most part, they were logical outgrowths of what historians have identified as two well-established traditions in Euro-American science.
Glycogen
发表于 2025-3-29 13:28:16
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魔鬼在游行
发表于 2025-3-29 18:08:48
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mercenary
发表于 2025-3-29 21:37:22
M. Wilscy,Madhu S. Nair. The chapter also describes real fragments of the histories of children and their families who suffered through the war in Ukraine. Above all, it draws attention to how rapidly the militarisation of childhood can occur in a society affected by war and how rapidly the war changes social expectations
saturated-fat
发表于 2025-3-30 00:44:28
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Fillet,Filet
发表于 2025-3-30 05:20:09
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