26只家兔一次气管内注入矽尘100mg,三个月后半数动物耳静脉注射10％葡萄糖酸钙,每周2次,每次5ml,五个月末处死,病理和X线检查发现:(1)矽结节钙化与否决定于矽结节有无崩解,不决定于给钙与否;(2)矽结节钙化不能阻止矽肺病变的发展;③不给钙动物,在实验第三个月末与处死前胸片检查显示,半数无明显改变,半数 Twenty-six rabbits were injected with 100 mg of trachea once intratracheally. After three months, half of the animals were injected with 10% calcium gluconate through the ear vein twice a week for 5 ml each and sacrificed at the end of the five months. Pathology and X-ray examination revealed that: ) Silicon nodules calcification or not depends on the presence or absence of disintegration of silicon nodules, does not depend on the calcium or not; (2) silicon nodules calcification can not prevent the development of silicosis; ③ not to calcium animals, in the third experiment Chest examination before the end of the month and executed showed that half of the no significant change in half