地层学被用于测定可移动艺术品的年代。

Stratigraphy is used for dating portable art.

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运用JB/T 6623-93中测定硫的方法，测定可膨胀石墨中的硫并取得满意结果。

Sulphur in expandable graphitede is determined using the way of determining Sulphur in JB/T 6623-93.

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结论：DEXA对骨折端的BMD跟踪测定可客观准确地反映骨折端骨痂生长状况，从而使骨折愈合检测数量化。

Conclusions: it implied that tracing test of BMD with DEXA at fracture ends could reflect accurately the state of fracture healing.

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