During geothermal reinjection, chemical monitoring can enable unfavorable changes in the reservoir to be seen in advance.

在热储回灌过程中，通过地热田水化学动态观测，能够及时发现和预见不利问题的发生。

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Therefore, chemical monitoring of geothermal fluid may give important information about the changes of geothermal systems.

因此，地热流体的化学监测可以提供许多有关地热系统变化的宝贵信息。

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At present, most power plants in the chemical monitoring, thermal companies also remain in the job run manual meter reading, manual data analysis phase.

而目前大部分发电厂化学监督、热力公司运行工作还停留在人工抄表、人工数据分析阶段。

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Early tests don't show substantial chemical contamination, but monitoring might have to continue for decades.

VOA: standard.2010.05.27

Thus far no effective means of monitoring chemical weapons production has been developed, in part because there are so many commercial chemical facilities that could be utilized for producing chemical weapons precursors.

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At the time it said the hospital followed a "strict regime of continual chemical dosing, thermal disinfections and comprehensive monitoring of the extensive water distribution system".

BBC: Legionella bacteria

Examples: Sensors to sniff potential chemical weapons will improve industrial processes and environmental monitoring.

FORBES: The Security-Industrial Complex