The China-made ship Huangdao has recently begun purifying the oil-contaminated water discharged by tankers and other ships in the Shanghai harbour. With a displacement of 45,000 tons, it is the...
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The China-made ship Huangdao has recently begun purifying the oil-contaminated water discharged by tankers and other ships in the Shanghai harbour. With a displacement of 45,000 tons, it is the...