是这么理解吗？谢谢

NEC is incompletely understood, although etiologies implicated include intestinal immaturity, intestinal mucosal ischemia, abnormal microbial colonization secondary to antibiotic therapy, highly immunoreactive intestinal mucosa, gastric alkalinity, and low systemic cardiac output. Clinical presentation includes feeding intolerance, abdominal distention with increased work of breathing from abdominal competition for diaphragmatic excursion, lethargy, temperature instability, with subsequent development of hypotension, sepsis, coagulopathy, and multisystem organ failure. The onset of NEC can be subdivided into early and late onset. Early onset is more common in premature infants with birth weights >1000 g, and typically occurs within the first 7 days of life. Late onset is more common in premature infants with birth weights <1000 g and typically occurs after 4 weeks of life

坏死性小肠结肠炎的发病机制尚不完全清楚，涉及的病因包括肠不成熟、肠粘膜缺血、抗生素治疗后继发的异常微生物定植、高免疫反应性肠粘膜、胃碱性和低全身心排血量低。

临床表现包括进食不耐受、因膈肌偏移腹部运动不协调造成的腹胀及呼吸功增加、嗜睡、体温不稳定，随后发展为低血压、脓毒症、凝血障碍和多系统器官衰竭。NEC的发病可分为早发和晚发。早发在出生体重>1000克的早产儿中更为常见，通常发生在生命的头7天内。晚发在出生体重<1000克的早产儿中更为常见，通常发生在出生后4周

gastric alkalinity翻译成胃碱性状态？谢谢

abdominal distention with increased work of breathing from abdominal competition for diaphragmatic excursion是这么理解吗？因膈肌偏移腹部运动不协调造成的腹胀及呼吸功增加？