It is used in thermal power plant, coal mine, coalport and those industries and enterprises that require coal samples to monitor coal quality.
用于火力发电厂、煤矿、煤港等需进行煤质监测采样的行业或单位。
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But on an outing earlier this month Mr Rolston appeared flummoxed by news that the queue of ships waiting to enter the port and load coal had stretched that morning to a record 70 vessels.
Russia, with vast coal reserves thousands of miles from the nearest port, might yet build the infrastructure needed to send its coal to the world market.