The species and their occurrence were found out basically through the systematic investigation on the arthropod community in seed field of alfalfa in Jingtai County, Baiyin, China.

对景泰苜蓿种子田节肢动物群落进行了系统调查，基本查清了景泰苜蓿种子田节肢动物的种类及其组成。

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It's also a systematic, reasonable nutrition design and nurse. It helps the patients get reasonable support of nutrition, lesser the occurrence of gastrointestinal and the complication.

较为系统的、合理的营养设计和护理，可以使患者得到合理的营养支持，减少胃肠道的反应和并发症的发生。

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