The solubility of nitrogen in Fe-C-B-N system was measured at 1 758 K,and the computational model on activity (action concentration) of nitrogen and boron was e
If you understand every individualword in a text and still fail to graspwhat the text is all about, or if youare very good at what you learn inclass but still
The lanthanum aluminum mesoporous materials were synthesized using sodium dodecyl sulfate as a template agent by ultrasonic hydrothermal method.The resulting sa
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