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。
2
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.