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司钻法压井
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司钻法压井
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二级井控技术
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well killing by driller
司钻法压井
发生溢流关井后,先用原密度钻井液循环排出溢流,再用加重钻井液压井的方法。又称两步控制法、二次循环法。
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biodegradable packaging
biodegradable plastics
biodegradable polymer
biodegradable polymeric materials
biodegradation
biodegradation of pollutants
biodegradation of polymer
biodegradation of surfactant
biodemography
bio-deodorization during composting
biodeposition
BIODEPTH
biodetection
biodeteriorative microbiology
biodetoxification
biodiagenesis
bio-diesel
biodiesel
biodiesel prepared by emulsification
biodiesel prepared by transesterification
biodiesel technology
biodiversity
Biodiversity and Ecological Processes in Terrestrial Herbaceous Ecosystems
biodiversity and ecosystem functioning experiment:BEF experiment
biodiversity conservation
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