为了研究上新世的飓风活动情况，研究人员依靠的就代理海洋温度，这个温度是基于洋底岩芯里几种化学示踪剂变化引起的。
To investigate the hurricane activity of the Pliocene, the researchers relied on proxy ocean temperatures based on variations in several chemical tracers in drill cores of the ocean floor.
放射性同位素以各种化学形态作为示踪剂的应用为医学提供了强有力的诊断工具。
In medicine, the use of radioisotopes in various chemical forms for tracing purposes offers a powerful diagnostic tool.
稀土元素在环境中的分布分异机制，是研究其作为地球化学示踪剂的重要基础和必要前提。
The distribution and fractionation of Rare Earth element are the base for their usage as trace elements.
目前国内外测定油藏连通性的方法大多采用电缆测井、地层对比、地球化学、压力测试、油藏数值模拟及示踪剂等方法研究地层连通性。
There are several conventional methods to measure stratal connectivity such as wireline logging, strata correlation, geochemistry, pressure test, reservoir simulation and tracer.
这些化学示踪剂用来确定生产井的生产来源，这在页岩气行业中对致力于更划算的压裂设计有重要意义。
Used to identify the source of production in a well, these chemical-based tracers may play an important role in the shale industry's effort to come up with more cost-effective fracture designs.
在化学性质方面，钆示踪剂以络合物的形式存在，比硼有更强的稳定性和安全性。
The chemical property of gadolinium is more stable and safer than that of boron, because gadolinium tracer stays as a complex compound.
在化学性质方面，钆示踪剂以络合物的形式存在，比硼有更强的稳定性和安全性。
The chemical property of gadolinium is more stable and safer than that of boron, because gadolinium tracer stays as a complex compound.
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