短语词组短语Clotting Agen 凝血剂clotting system 凝血系统clotting assay 凝集测定plot clotting 点迹凝聚clotting blood 血凝固milk clotting 凝乳clotting timer 凝血计时器clotting temperature 凝血温度clotting enzymes 凝固酶blood clotting 血液凝结clotting time 凝固时间 返回 clotting