凝结块 meaning in Chinese

coagulum

This happens when ink is solidified between ink nozzle and chamber of mesh
墨水在喷嘴和滤网之间形成凝结块，会出现堵头现象。
" the biggest problem is a blood clot which is blocking the return of blood from the legs to the heart and exerting pressure on the kidneys , " the physician explained
“最大问题是有一块血液的凝结块堵塞了从他的腿流回心脏的血液，并且使得他肾的血压增加， ”外科医生解释说。