深海采矿 deep mining; deep sea mining; deepsea mining 深海采矿船 deep-ocean mining ship; deesea mining vessel ..
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The proper lift pump for deepsea mining is one of key equipment of hydraulic mining system of ocean polymetallic nodules.
深海采矿专用提升泵是大洋多金属结核水力开采系统的关键设备之一。
In some foreign countries, it is more than 20 years since the study on technology for deepsea polymetallic nodule mining has been conducted, and many results have been achieved in this field.
国外在深海多金属结核开采技术研究这一领域中开展研究工作历时20余年，取得了许多成果。
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