您要查找的是不是：
- 繼發孔ASDAtrial septal defect
- 沖孔punching
- 螺孔screw
- 內孔endoporus
- 人孔manhole
- 繼發secondary
- 貧血,繼發Anemia/secondary
- 安裝孔open holes
- 繼發原發性second primary
- 圓孔round orifice
- 繼發變應素secondary allergen
- 螺紋孔tap hole
- 次要的，繼發的secondary
- 排水孔osculum
- 縮孔shrinkage cavity
- 次級，繼發的，第二的secondary
- 沉孔counter bore
- 繼發於心梗后的冠心病防治Secondary prevention of coronary heart disease following myocardial infarction
- 繼發於重症腦病及顱內感染者預后差。Conclusion: Hypoproteinemia is closely related to the onset of EH.
- 螺栓孔bolt hole
