composition B[化] B炸药(如中国的黑梯炸药)compositionn.成分；作品；组织；作文；合成物composition of community users社区受众构成composition of livestock herds畜群结构composition in primary schools小学习作composition of fuzzy relations模糊关系的合成composition of different areas区系成分composition sampling technique复合抽样方法composition of menstrual blood月经血成分composition of consumer demand消费构成composition and classification组成和分类compositionally graded coating成分梯度膜层

1. Every day thousands of blood components are transfused to patients.
   每天成千上万的成分血被输入病患。