活动性小梁钙化面的英文：
active trabecular calcification surface
adj. 活跃的，积极的；现行的；主动的
n. 积极分子
She is an active participant in this activity.
她积极参与这项活动。
They are union actives.
他们是工会积极分子。
contamination activity
污染放射性
[解]有小梁的
calcification是什么意思：
n. 石灰化
An x-ray film examination of the dorsolumbar spine as well as pectoral regions showed multiple areas of calcification
X线摄片检查表明，其胸椎、腰椎及胸部有多处钙化。