不过现在NASA的雨燕卫星在硬（高能）X射线的巡天新成果可靠地显示活动星系核与星系合并的紧密联系。
New results from a premier sky survey by NASA's Swift satellite at hard (energetic) X-ray energies now solidly show a strong association of AGN with merging galaxies, though.
PD涂料染色粘合剂是由软单体含量较高的核和硬单体含量较高的壳组成。
The pigment binder PD is composed of a nucleus with softer monomer content and a shell with harder monomer content.
早产儿病死率为20．9％，病死率高的疾病顺位为RDS、HIE、核黄疸、硬肿症、败血症等。
The premature death rate is 20.9%, the diseases with high death rate are: RDS, HIE, kernicterus, cold injury syndrome, septicemia.
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